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Finding the Fourth Proportional to 664,338.60, 995,487.30 and 495,064.80

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Solution

The fourth proportional to 664,338.60, 995,487.30 and 495,064.80 is: 741,836.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,338.60 : 995,487.30 = 495,064.80 : x
  2. Step 2: Convert to fraction form
    664,338.60/995,487.30 = 495,064.80/x
  3. Step 3: Cross multiply
    664,338.60x = 995,487.30 × 495,064.80
  4. Step 4: Simplify right side
    664,338.60x = 492,830,721,077.04
  5. Step 5: Solve for x
    x = 492,830,721,077.04/664,338.60
  6. Step 6: Final answer
    x = 741,836.65

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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.