Home / 498,848.20-688,384.74-272,449.96

Finding the Fourth Proportional to 498,848.20, 688,384.74 and 272,449.96

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Solution

The fourth proportional to 498,848.20, 688,384.74 and 272,449.96 is: 375,966.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,848.20 : 688,384.74 = 272,449.96 : x
  2. Step 2: Convert to fraction form
    498,848.20/688,384.74 = 272,449.96/x
  3. Step 3: Cross multiply
    498,848.20x = 688,384.74 × 272,449.96
  4. Step 4: Simplify right side
    498,848.20x = 187,550,394,877.61
  5. Step 5: Solve for x
    x = 187,550,394,877.61/498,848.20
  6. Step 6: Final answer
    x = 375,966.87

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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.