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Finding the Fourth Proportional to 498,955.56, 688,526.46 and 272,600.88

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Solution

The fourth proportional to 498,955.56, 688,526.46 and 272,600.88 is: 376,171.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,955.56 : 688,526.46 = 272,600.88 : x
  2. Step 2: Convert to fraction form
    498,955.56/688,526.46 = 272,600.88/x
  3. Step 3: Cross multiply
    498,955.56x = 688,526.46 × 272,600.88
  4. Step 4: Simplify right side
    498,955.56x = 187,692,918,899.29
  5. Step 5: Solve for x
    x = 187,692,918,899.29/498,955.56
  6. Step 6: Final answer
    x = 376,171.62

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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.