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Finding the Fourth Proportional to 482,813.40, 724,220.10 and 127,882.20

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Solution

The fourth proportional to 482,813.40, 724,220.10 and 127,882.20 is: 191,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,813.40 : 724,220.10 = 127,882.20 : x
  2. Step 2: Convert to fraction form
    482,813.40/724,220.10 = 127,882.20/x
  3. Step 3: Cross multiply
    482,813.40x = 724,220.10 × 127,882.20
  4. Step 4: Simplify right side
    482,813.40x = 92,614,859,672.22
  5. Step 5: Solve for x
    x = 92,614,859,672.22/482,813.40
  6. Step 6: Final answer
    x = 191,823.30

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.