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Finding the Fourth Proportional to 498,778.13, 688,313.82 and 272,424.17

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Solution

The fourth proportional to 498,778.13, 688,313.82 and 272,424.17 is: 375,945.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,778.13 : 688,313.82 = 272,424.17 : x
  2. Step 2: Convert to fraction form
    498,778.13/688,313.82 = 272,424.17/x
  3. Step 3: Cross multiply
    498,778.13x = 688,313.82 × 272,424.17
  4. Step 4: Simplify right side
    498,778.13x = 187,513,316,309.34
  5. Step 5: Solve for x
    x = 187,513,316,309.34/498,778.13
  6. Step 6: Final answer
    x = 375,945.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.