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Finding the Fourth Proportional to 621,702.04, 932,553.00 and 172,422.90

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Solution

The fourth proportional to 621,702.04, 932,553.00 and 172,422.90 is: 258,634.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,702.04 : 932,553.00 = 172,422.90 : x
  2. Step 2: Convert to fraction form
    621,702.04/932,553.00 = 172,422.90/x
  3. Step 3: Cross multiply
    621,702.04x = 932,553.00 × 172,422.90
  4. Step 4: Simplify right side
    621,702.04x = 160,793,490,525.83
  5. Step 5: Solve for x
    x = 160,793,490,525.83/621,702.04
  6. Step 6: Final answer
    x = 258,634.33

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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.