Home / 728,082.10-1,092,123.15-662,763.70

Finding the Fourth Proportional to 728,082.10, 1,092,123.15 and 662,763.70

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Solution

The fourth proportional to 728,082.10, 1,092,123.15 and 662,763.70 is: 994,145.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,082.10 : 1,092,123.15 = 662,763.70 : x
  2. Step 2: Convert to fraction form
    728,082.10/1,092,123.15 = 662,763.70/x
  3. Step 3: Cross multiply
    728,082.10x = 1,092,123.15 × 662,763.70
  4. Step 4: Simplify right side
    728,082.10x = 723,819,579,749.66
  5. Step 5: Solve for x
    x = 723,819,579,749.66/728,082.10
  6. Step 6: Final answer
    x = 994,145.55

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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.