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Finding the Fourth Proportional to 499,060.92, 688,705.80 and 272,706.48

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Solution

The fourth proportional to 499,060.92, 688,705.80 and 272,706.48 is: 376,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,060.92 : 688,705.80 = 272,706.48 : x
  2. Step 2: Convert to fraction form
    499,060.92/688,705.80 = 272,706.48/x
  3. Step 3: Cross multiply
    499,060.92x = 688,705.80 × 272,706.48
  4. Step 4: Simplify right side
    499,060.92x = 187,814,534,473.58
  5. Step 5: Solve for x
    x = 187,814,534,473.58/499,060.92
  6. Step 6: Final answer
    x = 376,335.89

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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.