Home / 498,732.56-688,253.46-272,378.06

Finding the Fourth Proportional to 498,732.56, 688,253.46 and 272,378.06

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Solution

The fourth proportional to 498,732.56, 688,253.46 and 272,378.06 is: 375,883.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,732.56 : 688,253.46 = 272,378.06 : x
  2. Step 2: Convert to fraction form
    498,732.56/688,253.46 = 272,378.06/x
  3. Step 3: Cross multiply
    498,732.56x = 688,253.46 × 272,378.06
  4. Step 4: Simplify right side
    498,732.56x = 187,465,142,223.09
  5. Step 5: Solve for x
    x = 187,465,142,223.09/498,732.56
  6. Step 6: Final answer
    x = 375,883.10

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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.