Home / 766,197.46-1,057,363.77-443,930.86

Finding the Fourth Proportional to 766,197.46, 1,057,363.77 and 443,930.86

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Solution

The fourth proportional to 766,197.46, 1,057,363.77 and 443,930.86 is: 612,631.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,197.46 : 1,057,363.77 = 443,930.86 : x
  2. Step 2: Convert to fraction form
    766,197.46/1,057,363.77 = 443,930.86/x
  3. Step 3: Cross multiply
    766,197.46x = 1,057,363.77 × 443,930.86
  4. Step 4: Simplify right side
    766,197.46x = 469,396,407,748.94
  5. Step 5: Solve for x
    x = 469,396,407,748.94/766,197.46
  6. Step 6: Final answer
    x = 612,631.12

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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.