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Finding the Fourth Proportional to 490,882.60, 736,323.90 and 487,772.20

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Solution

The fourth proportional to 490,882.60, 736,323.90 and 487,772.20 is: 731,658.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,882.60 : 736,323.90 = 487,772.20 : x
  2. Step 2: Convert to fraction form
    490,882.60/736,323.90 = 487,772.20/x
  3. Step 3: Cross multiply
    490,882.60x = 736,323.90 × 487,772.20
  4. Step 4: Simplify right side
    490,882.60x = 359,158,328,615.58
  5. Step 5: Solve for x
    x = 359,158,328,615.58/490,882.60
  6. Step 6: Final answer
    x = 731,658.30

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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.