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Finding the Fourth Proportional to 721,653.54, 995,898.12 and 467,447.18

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Solution

The fourth proportional to 721,653.54, 995,898.12 and 467,447.18 is: 645,087.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,653.54 : 995,898.12 = 467,447.18 : x
  2. Step 2: Convert to fraction form
    721,653.54/995,898.12 = 467,447.18/x
  3. Step 3: Cross multiply
    721,653.54x = 995,898.12 × 467,447.18
  4. Step 4: Simplify right side
    721,653.54x = 465,529,767,761.30
  5. Step 5: Solve for x
    x = 465,529,767,761.30/721,653.54
  6. Step 6: Final answer
    x = 645,087.62

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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.