Home / 702,769.18-1,053,144.96-399,404.92

Finding the Fourth Proportional to 702,769.18, 1,053,144.96 and 399,404.92

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Solution

The fourth proportional to 702,769.18, 1,053,144.96 and 399,404.92 is: 598,534.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,769.18 : 1,053,144.96 = 399,404.92 : x
  2. Step 2: Convert to fraction form
    702,769.18/1,053,144.96 = 399,404.92/x
  3. Step 3: Cross multiply
    702,769.18x = 1,053,144.96 × 399,404.92
  4. Step 4: Simplify right side
    702,769.18x = 420,631,278,497.20
  5. Step 5: Solve for x
    x = 420,631,278,497.20/702,769.18
  6. Step 6: Final answer
    x = 598,534.04

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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.