Home / 669,912.40-1,005,160.20-337,488.40

Finding the Fourth Proportional to 669,912.40, 1,005,160.20 and 337,488.40

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Solution

The fourth proportional to 669,912.40, 1,005,160.20 and 337,488.40 is: 506,379.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,912.40 : 1,005,160.20 = 337,488.40 : x
  2. Step 2: Convert to fraction form
    669,912.40/1,005,160.20 = 337,488.40/x
  3. Step 3: Cross multiply
    669,912.40x = 1,005,160.20 × 337,488.40
  4. Step 4: Simplify right side
    669,912.40x = 339,229,907,641.68
  5. Step 5: Solve for x
    x = 339,229,907,641.68/669,912.40
  6. Step 6: Final answer
    x = 506,379.50

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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.