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Finding the Fourth Proportional to 498,997.04, 688,607.88 and 272,637.68

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Solution

The fourth proportional to 498,997.04, 688,607.88 and 272,637.68 is: 376,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,997.04 : 688,607.88 = 272,637.68 : x
  2. Step 2: Convert to fraction form
    498,997.04/688,607.88 = 272,637.68/x
  3. Step 3: Cross multiply
    498,997.04x = 688,607.88 × 272,637.68
  4. Step 4: Simplify right side
    498,997.04x = 187,740,454,832.92
  5. Step 5: Solve for x
    x = 187,740,454,832.92/498,997.04
  6. Step 6: Final answer
    x = 376,235.61

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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.