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Finding the Fourth Proportional to 653,517.20, 980,045.40 and 232,806.80

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Solution

The fourth proportional to 653,517.20, 980,045.40 and 232,806.80 is: 349,128.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,517.20 : 980,045.40 = 232,806.80 : x
  2. Step 2: Convert to fraction form
    653,517.20/980,045.40 = 232,806.80/x
  3. Step 3: Cross multiply
    653,517.20x = 980,045.40 × 232,806.80
  4. Step 4: Simplify right side
    653,517.20x = 228,161,233,428.72
  5. Step 5: Solve for x
    x = 228,161,233,428.72/653,517.20
  6. Step 6: Final answer
    x = 349,128.12

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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.