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Finding the Fourth Proportional to 477,306.57, 658,677.72 and 355,344.27

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Solution

The fourth proportional to 477,306.57, 658,677.72 and 355,344.27 is: 490,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,306.57 : 658,677.72 = 355,344.27 : x
  2. Step 2: Convert to fraction form
    477,306.57/658,677.72 = 355,344.27/x
  3. Step 3: Cross multiply
    477,306.57x = 658,677.72 × 355,344.27
  4. Step 4: Simplify right side
    477,306.57x = 234,057,352,441.16
  5. Step 5: Solve for x
    x = 234,057,352,441.16/477,306.57
  6. Step 6: Final answer
    x = 490,371.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.