Home / 499,116.06-688,778.64-272,761.56

Finding the Fourth Proportional to 499,116.06, 688,778.64 and 272,761.56

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Solution

The fourth proportional to 499,116.06, 688,778.64 and 272,761.56 is: 376,410.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,116.06 : 688,778.64 = 272,761.56 : x
  2. Step 2: Convert to fraction form
    499,116.06/688,778.64 = 272,761.56/x
  3. Step 3: Cross multiply
    499,116.06x = 688,778.64 × 272,761.56
  4. Step 4: Simplify right side
    499,116.06x = 187,872,336,341.08
  5. Step 5: Solve for x
    x = 187,872,336,341.08/499,116.06
  6. Step 6: Final answer
    x = 376,410.12

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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.