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Finding the Fourth Proportional to 499,062.92, 688,708.62 and 272,708.42

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Solution

The fourth proportional to 499,062.92, 688,708.62 and 272,708.42 is: 376,338.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,062.92 : 688,708.62 = 272,708.42 : x
  2. Step 2: Convert to fraction form
    499,062.92/688,708.62 = 272,708.42/x
  3. Step 3: Cross multiply
    499,062.92x = 688,708.62 × 272,708.42
  4. Step 4: Simplify right side
    499,062.92x = 187,816,639,600.58
  5. Step 5: Solve for x
    x = 187,816,639,600.58/499,062.92
  6. Step 6: Final answer
    x = 376,338.60

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1.5x scale

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.