Home / 669,751.20-1,004,335.20-220,298.40

Finding the Fourth Proportional to 669,751.20, 1,004,335.20 and 220,298.40

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Solution

The fourth proportional to 669,751.20, 1,004,335.20 and 220,298.40 is: 330,351.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,751.20 : 1,004,335.20 = 220,298.40 : x
  2. Step 2: Convert to fraction form
    669,751.20/1,004,335.20 = 220,298.40/x
  3. Step 3: Cross multiply
    669,751.20x = 1,004,335.20 × 220,298.40
  4. Step 4: Simplify right side
    669,751.20x = 221,253,437,623.68
  5. Step 5: Solve for x
    x = 221,253,437,623.68/669,751.20
  6. Step 6: Final answer
    x = 330,351.69

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Double scale
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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.