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Finding the Fourth Proportional to 721,473.80, 995,568.34 and 415,468.68

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Solution

The fourth proportional to 721,473.80, 995,568.34 and 415,468.68 is: 573,309.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,473.80 : 995,568.34 = 415,468.68 : x
  2. Step 2: Convert to fraction form
    721,473.80/995,568.34 = 415,468.68/x
  3. Step 3: Cross multiply
    721,473.80x = 995,568.34 × 415,468.68
  4. Step 4: Simplify right side
    721,473.80x = 413,627,464,069.59
  5. Step 5: Solve for x
    x = 413,627,464,069.59/721,473.80
  6. Step 6: Final answer
    x = 573,309.06

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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.