Home / 484,976.20-727,464.30-442,985.80

Finding the Fourth Proportional to 484,976.20, 727,464.30 and 442,985.80

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Solution

The fourth proportional to 484,976.20, 727,464.30 and 442,985.80 is: 664,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,976.20 : 727,464.30 = 442,985.80 : x
  2. Step 2: Convert to fraction form
    484,976.20/727,464.30 = 442,985.80/x
  3. Step 3: Cross multiply
    484,976.20x = 727,464.30 × 442,985.80
  4. Step 4: Simplify right side
    484,976.20x = 322,256,354,906.94
  5. Step 5: Solve for x
    x = 322,256,354,906.94/484,976.20
  6. Step 6: Final answer
    x = 664,478.70

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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.