Home / 669,904.40-1,005,148.20-337,480.40

Finding the Fourth Proportional to 669,904.40, 1,005,148.20 and 337,480.40

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Solution

The fourth proportional to 669,904.40, 1,005,148.20 and 337,480.40 is: 506,367.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,904.40 : 1,005,148.20 = 337,480.40 : x
  2. Step 2: Convert to fraction form
    669,904.40/1,005,148.20 = 337,480.40/x
  3. Step 3: Cross multiply
    669,904.40x = 1,005,148.20 × 337,480.40
  4. Step 4: Simplify right side
    669,904.40x = 339,217,816,595.28
  5. Step 5: Solve for x
    x = 339,217,816,595.28/669,904.40
  6. Step 6: Final answer
    x = 506,367.50

Related Problems

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Half scale
Find fourth proportional to 1,339,808.80, 2,010,296.40 and 674,960.80
Double scale
Find fourth proportional to 669,905.40, 1,005,149.70 and 337,481.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.