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Finding the Fourth Proportional to 359,423.60, 539,135.40 and 329,097.20

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Solution

The fourth proportional to 359,423.60, 539,135.40 and 329,097.20 is: 493,645.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,423.60 : 539,135.40 = 329,097.20 : x
  2. Step 2: Convert to fraction form
    359,423.60/539,135.40 = 329,097.20/x
  3. Step 3: Cross multiply
    359,423.60x = 539,135.40 × 329,097.20
  4. Step 4: Simplify right side
    359,423.60x = 177,427,950,560.88
  5. Step 5: Solve for x
    x = 177,427,950,560.88/359,423.60
  6. Step 6: Final answer
    x = 493,645.80

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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.