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Finding the Fourth Proportional to 521,219.80, 781,995.66 and 232,987.24

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Solution

The fourth proportional to 521,219.80, 781,995.66 and 232,987.24 is: 349,555.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,219.80 : 781,995.66 = 232,987.24 : x
  2. Step 2: Convert to fraction form
    521,219.80/781,995.66 = 232,987.24/x
  3. Step 3: Cross multiply
    521,219.80x = 781,995.66 × 232,987.24
  4. Step 4: Simplify right side
    521,219.80x = 182,195,010,515.38
  5. Step 5: Solve for x
    x = 182,195,010,515.38/521,219.80
  6. Step 6: Final answer
    x = 349,555.04

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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.