Home / 398,822.14-598,103.79-132,511.15

Finding the Fourth Proportional to 398,822.14, 598,103.79 and 132,511.15

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Solution

The fourth proportional to 398,822.14, 598,103.79 and 132,511.15 is: 198,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,822.14 : 598,103.79 = 132,511.15 : x
  2. Step 2: Convert to fraction form
    398,822.14/598,103.79 = 132,511.15/x
  3. Step 3: Cross multiply
    398,822.14x = 598,103.79 × 132,511.15
  4. Step 4: Simplify right side
    398,822.14x = 79,255,421,032.26
  5. Step 5: Solve for x
    x = 79,255,421,032.26/398,822.14
  6. Step 6: Final answer
    x = 198,723.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.