Home / 728,082.10-1,092,123.15-476,139.70

Finding the Fourth Proportional to 728,082.10, 1,092,123.15 and 476,139.70

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Solution

The fourth proportional to 728,082.10, 1,092,123.15 and 476,139.70 is: 714,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,082.10 : 1,092,123.15 = 476,139.70 : x
  2. Step 2: Convert to fraction form
    728,082.10/1,092,123.15 = 476,139.70/x
  3. Step 3: Cross multiply
    728,082.10x = 1,092,123.15 × 476,139.70
  4. Step 4: Simplify right side
    728,082.10x = 520,003,189,004.06
  5. Step 5: Solve for x
    x = 520,003,189,004.06/728,082.10
  6. Step 6: Final answer
    x = 714,209.55

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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.