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Finding the Fourth Proportional to 488,556.30, 732,834.45 and 440,345.10

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Solution

The fourth proportional to 488,556.30, 732,834.45 and 440,345.10 is: 660,517.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,556.30 : 732,834.45 = 440,345.10 : x
  2. Step 2: Convert to fraction form
    488,556.30/732,834.45 = 440,345.10/x
  3. Step 3: Cross multiply
    488,556.30x = 732,834.45 × 440,345.10
  4. Step 4: Simplify right side
    488,556.30x = 322,700,059,168.70
  5. Step 5: Solve for x
    x = 322,700,059,168.70/488,556.30
  6. Step 6: Final answer
    x = 660,517.65

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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.