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Finding the Fourth Proportional to 488,779.20, 733,168.80 and 400,132.80

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Solution

The fourth proportional to 488,779.20, 733,168.80 and 400,132.80 is: 600,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,779.20 : 733,168.80 = 400,132.80 : x
  2. Step 2: Convert to fraction form
    488,779.20/733,168.80 = 400,132.80/x
  3. Step 3: Cross multiply
    488,779.20x = 733,168.80 × 400,132.80
  4. Step 4: Simplify right side
    488,779.20x = 293,364,884,816.64
  5. Step 5: Solve for x
    x = 293,364,884,816.64/488,779.20
  6. Step 6: Final answer
    x = 600,199.20

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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.