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Finding the Fourth Proportional to 488,546.40, 732,819.60 and 445,000.80

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Solution

The fourth proportional to 488,546.40, 732,819.60 and 445,000.80 is: 667,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,546.40 : 732,819.60 = 445,000.80 : x
  2. Step 2: Convert to fraction form
    488,546.40/732,819.60 = 445,000.80/x
  3. Step 3: Cross multiply
    488,546.40x = 732,819.60 × 445,000.80
  4. Step 4: Simplify right side
    488,546.40x = 326,105,308,255.68
  5. Step 5: Solve for x
    x = 326,105,308,255.68/488,546.40
  6. Step 6: Final answer
    x = 667,501.20

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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.