Home / 727,726.60-1,092,237.90-427,832.20

Finding the Fourth Proportional to 727,726.60, 1,092,237.90 and 427,832.20

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Solution

The fourth proportional to 727,726.60, 1,092,237.90 and 427,832.20 is: 642,129.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,726.60 : 1,092,237.90 = 427,832.20 : x
  2. Step 2: Convert to fraction form
    727,726.60/1,092,237.90 = 427,832.20/x
  3. Step 3: Cross multiply
    727,726.60x = 1,092,237.90 × 427,832.20
  4. Step 4: Simplify right side
    727,726.60x = 467,294,543,680.38
  5. Step 5: Solve for x
    x = 467,294,543,680.38/727,726.60
  6. Step 6: Final answer
    x = 642,129.26

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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.