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Finding the Fourth Proportional to 439,605.20, 658,630.20 and 377,397.20

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Solution

The fourth proportional to 439,605.20, 658,630.20 and 377,397.20 is: 565,428.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,605.20 : 658,630.20 = 377,397.20 : x
  2. Step 2: Convert to fraction form
    439,605.20/658,630.20 = 377,397.20/x
  3. Step 3: Cross multiply
    439,605.20x = 658,630.20 × 377,397.20
  4. Step 4: Simplify right side
    439,605.20x = 248,565,193,315.44
  5. Step 5: Solve for x
    x = 248,565,193,315.44/439,605.20
  6. Step 6: Final answer
    x = 565,428.24

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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.