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Finding the Fourth Proportional to 499,050.67, 688,691.70 and 272,696.17

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Solution

The fourth proportional to 499,050.67, 688,691.70 and 272,696.17 is: 376,321.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,050.67 : 688,691.70 = 272,696.17 : x
  2. Step 2: Convert to fraction form
    499,050.67/688,691.70 = 272,696.17/x
  3. Step 3: Cross multiply
    499,050.67x = 688,691.70 × 272,696.17
  4. Step 4: Simplify right side
    499,050.67x = 187,803,588,900.79
  5. Step 5: Solve for x
    x = 187,803,588,900.79/499,050.67
  6. Step 6: Final answer
    x = 376,321.68

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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.