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Finding the Fourth Proportional to 721,258.12, 995,001.06 and 466,691.56

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Solution

The fourth proportional to 721,258.12, 995,001.06 and 466,691.56 is: 643,817.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,258.12 : 995,001.06 = 466,691.56 : x
  2. Step 2: Convert to fraction form
    721,258.12/995,001.06 = 466,691.56/x
  3. Step 3: Cross multiply
    721,258.12x = 995,001.06 × 466,691.56
  4. Step 4: Simplify right side
    721,258.12x = 464,358,596,893.05
  5. Step 5: Solve for x
    x = 464,358,596,893.05/721,258.12
  6. Step 6: Final answer
    x = 643,817.50

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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.