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Finding the Fourth Proportional to 664,356.60, 995,514.30 and 495,082.80

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Solution

The fourth proportional to 664,356.60, 995,514.30 and 495,082.80 is: 741,863.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356.60 : 995,514.30 = 495,082.80 : x
  2. Step 2: Convert to fraction form
    664,356.60/995,514.30 = 495,082.80/x
  3. Step 3: Cross multiply
    664,356.60x = 995,514.30 × 495,082.80
  4. Step 4: Simplify right side
    664,356.60x = 492,862,007,084.04
  5. Step 5: Solve for x
    x = 492,862,007,084.04/664,356.60
  6. Step 6: Final answer
    x = 741,863.64

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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.