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Finding the Fourth Proportional to 488,302.60, 732,453.90 and 320,887.75

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Solution

The fourth proportional to 488,302.60, 732,453.90 and 320,887.75 is: 481,331.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,302.60 : 732,453.90 = 320,887.75 : x
  2. Step 2: Convert to fraction form
    488,302.60/732,453.90 = 320,887.75/x
  3. Step 3: Cross multiply
    488,302.60x = 732,453.90 × 320,887.75
  4. Step 4: Simplify right side
    488,302.60x = 235,035,483,949.73
  5. Step 5: Solve for x
    x = 235,035,483,949.73/488,302.60
  6. Step 6: Final answer
    x = 481,331.63

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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.