Home / 766,147.87-1,057,123.67-443,838.74

Finding the Fourth Proportional to 766,147.87, 1,057,123.67 and 443,838.74

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Solution

The fourth proportional to 766,147.87, 1,057,123.67 and 443,838.74 is: 612,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,147.87 : 1,057,123.67 = 443,838.74 : x
  2. Step 2: Convert to fraction form
    766,147.87/1,057,123.67 = 443,838.74/x
  3. Step 3: Cross multiply
    766,147.87x = 1,057,123.67 × 443,838.74
  4. Step 4: Simplify right side
    766,147.87x = 469,192,438,140.59
  5. Step 5: Solve for x
    x = 469,192,438,140.59/766,147.87
  6. Step 6: Final answer
    x = 612,404.55

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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.