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Finding the Fourth Proportional to 721,515.52, 996,091.84 and 435,108.16

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Solution

The fourth proportional to 721,515.52, 996,091.84 and 435,108.16 is: 600,690.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,515.52 : 996,091.84 = 435,108.16 : x
  2. Step 2: Convert to fraction form
    721,515.52/996,091.84 = 435,108.16/x
  3. Step 3: Cross multiply
    721,515.52x = 996,091.84 × 435,108.16
  4. Step 4: Simplify right side
    721,515.52x = 433,407,687,693.41
  5. Step 5: Solve for x
    x = 433,407,687,693.41/721,515.52
  6. Step 6: Final answer
    x = 600,690.73

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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.