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Finding the Fourth Proportional to 721,651.53, 995,895.36 and 467,445.18

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Solution

The fourth proportional to 721,651.53, 995,895.36 and 467,445.18 is: 645,084.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,651.53 : 995,895.36 = 467,445.18 : x
  2. Step 2: Convert to fraction form
    721,651.53/995,895.36 = 467,445.18/x
  3. Step 3: Cross multiply
    721,651.53x = 995,895.36 × 467,445.18
  4. Step 4: Simplify right side
    721,651.53x = 465,526,485,816.37
  5. Step 5: Solve for x
    x = 465,526,485,816.37/721,651.53
  6. Step 6: Final answer
    x = 645,084.87

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.