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Finding the Fourth Proportional to 721,597.76, 995,945.76 and 435,164.48

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Solution

The fourth proportional to 721,597.76, 995,945.76 and 435,164.48 is: 600,611.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,597.76 : 995,945.76 = 435,164.48 : x
  2. Step 2: Convert to fraction form
    721,597.76/995,945.76 = 435,164.48/x
  3. Step 3: Cross multiply
    721,597.76x = 995,945.76 × 435,164.48
  4. Step 4: Simplify right side
    721,597.76x = 433,400,218,758.61
  5. Step 5: Solve for x
    x = 433,400,218,758.61/721,597.76
  6. Step 6: Final answer
    x = 600,611.92

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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.