Home / 398,824.12-598,106.78-132,513.14

Finding the Fourth Proportional to 398,824.12, 598,106.78 and 132,513.14

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Solution

The fourth proportional to 398,824.12, 598,106.78 and 132,513.14 is: 198,726.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,824.12 : 598,106.78 = 132,513.14 : x
  2. Step 2: Convert to fraction form
    398,824.12/598,106.78 = 132,513.14/x
  3. Step 3: Cross multiply
    398,824.12x = 598,106.78 × 132,513.14
  4. Step 4: Simplify right side
    398,824.12x = 79,257,007,473.09
  5. Step 5: Solve for x
    x = 79,257,007,473.09/398,824.12
  6. Step 6: Final answer
    x = 198,726.72

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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.