Home / 498,780.13-688,316.58-272,426.17

Finding the Fourth Proportional to 498,780.13, 688,316.58 and 272,426.17

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Solution

The fourth proportional to 498,780.13, 688,316.58 and 272,426.17 is: 375,948.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,780.13 : 688,316.58 = 272,426.17 : x
  2. Step 2: Convert to fraction form
    498,780.13/688,316.58 = 272,426.17/x
  3. Step 3: Cross multiply
    498,780.13x = 688,316.58 × 272,426.17
  4. Step 4: Simplify right side
    498,780.13x = 187,515,449,636.90
  5. Step 5: Solve for x
    x = 187,515,449,636.90/498,780.13
  6. Step 6: Final answer
    x = 375,948.11

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Why These Related Problems?

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