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Finding the Fourth Proportional to 721,494.16, 995,228.13 and 476,481.17

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Solution

The fourth proportional to 721,494.16, 995,228.13 and 476,481.17 is: 657,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,494.16 : 995,228.13 = 476,481.17 : x
  2. Step 2: Convert to fraction form
    721,494.16/995,228.13 = 476,481.17/x
  3. Step 3: Cross multiply
    721,494.16x = 995,228.13 × 476,481.17
  4. Step 4: Simplify right side
    721,494.16x = 474,207,464,664.49
  5. Step 5: Solve for x
    x = 474,207,464,664.49/721,494.16
  6. Step 6: Final answer
    x = 657,257.52

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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.