Home / 766,079.83-1,057,029.28-443,770.57

Finding the Fourth Proportional to 766,079.83, 1,057,029.28 and 443,770.57

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Solution

The fourth proportional to 766,079.83, 1,057,029.28 and 443,770.57 is: 612,310.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,079.83 : 1,057,029.28 = 443,770.57 : x
  2. Step 2: Convert to fraction form
    766,079.83/1,057,029.28 = 443,770.57/x
  3. Step 3: Cross multiply
    766,079.83x = 1,057,029.28 × 443,770.57
  4. Step 4: Simplify right side
    766,079.83x = 469,078,486,092.29
  5. Step 5: Solve for x
    x = 469,078,486,092.29/766,079.83
  6. Step 6: Final answer
    x = 612,310.19

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Double scale
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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.