Home / 721,734.16-995,882.20-415,750.79

Finding the Fourth Proportional to 721,734.16, 995,882.20 and 415,750.79

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Solution

The fourth proportional to 721,734.16, 995,882.20 and 415,750.79 is: 573,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,734.16 : 995,882.20 = 415,750.79 : x
  2. Step 2: Convert to fraction form
    721,734.16/995,882.20 = 415,750.79/x
  3. Step 3: Cross multiply
    721,734.16x = 995,882.20 × 415,750.79
  4. Step 4: Simplify right side
    721,734.16x = 414,038,811,396.94
  5. Step 5: Solve for x
    x = 414,038,811,396.94/721,734.16
  6. Step 6: Final answer
    x = 573,672.18

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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.