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Finding the Fourth Proportional to 478,841.60, 718,262.40 and 329,542.40

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Solution

The fourth proportional to 478,841.60, 718,262.40 and 329,542.40 is: 494,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,841.60 : 718,262.40 = 329,542.40 : x
  2. Step 2: Convert to fraction form
    478,841.60/718,262.40 = 329,542.40/x
  3. Step 3: Cross multiply
    478,841.60x = 718,262.40 × 329,542.40
  4. Step 4: Simplify right side
    478,841.60x = 236,697,915,125.76
  5. Step 5: Solve for x
    x = 236,697,915,125.76/478,841.60
  6. Step 6: Final answer
    x = 494,313.60

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Similar ratio
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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.