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Finding the Fourth Proportional to 500,422.56, 750,862.58 and 272,376.56

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Solution

The fourth proportional to 500,422.56, 750,862.58 and 272,376.56 is: 408,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,422.56 : 750,862.58 = 272,376.56 : x
  2. Step 2: Convert to fraction form
    500,422.56/750,862.58 = 272,376.56/x
  3. Step 3: Cross multiply
    500,422.56x = 750,862.58 × 272,376.56
  4. Step 4: Simplify right side
    500,422.56x = 204,517,361,456.93
  5. Step 5: Solve for x
    x = 204,517,361,456.93/500,422.56
  6. Step 6: Final answer
    x = 408,689.33

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1.5x scale

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.