Home / 658,572.15-987,782.76-172,301.24

Finding the Fourth Proportional to 658,572.15, 987,782.76 and 172,301.24

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Solution

The fourth proportional to 658,572.15, 987,782.76 and 172,301.24 is: 258,432.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,572.15 : 987,782.76 = 172,301.24 : x
  2. Step 2: Convert to fraction form
    658,572.15/987,782.76 = 172,301.24/x
  3. Step 3: Cross multiply
    658,572.15x = 987,782.76 × 172,301.24
  4. Step 4: Simplify right side
    658,572.15x = 170,196,192,943.17
  5. Step 5: Solve for x
    x = 170,196,192,943.17/658,572.15
  6. Step 6: Final answer
    x = 258,432.12

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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.