Home / 498,871.68-688,458.08-272,531.84

Finding the Fourth Proportional to 498,871.68, 688,458.08 and 272,531.84

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Solution

The fourth proportional to 498,871.68, 688,458.08 and 272,531.84 is: 376,102.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,871.68 : 688,458.08 = 272,531.84 : x
  2. Step 2: Convert to fraction form
    498,871.68/688,458.08 = 272,531.84/x
  3. Step 3: Cross multiply
    498,871.68x = 688,458.08 × 272,531.84
  4. Step 4: Simplify right side
    498,871.68x = 187,626,747,305.27
  5. Step 5: Solve for x
    x = 187,626,747,305.27/498,871.68
  6. Step 6: Final answer
    x = 376,102.22

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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.