Home / 748,727.20-1,123,090.80-667,856.80

Finding the Fourth Proportional to 748,727.20, 1,123,090.80 and 667,856.80

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Solution

The fourth proportional to 748,727.20, 1,123,090.80 and 667,856.80 is: 1,001,785.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,727.20 : 1,123,090.80 = 667,856.80 : x
  2. Step 2: Convert to fraction form
    748,727.20/1,123,090.80 = 667,856.80/x
  3. Step 3: Cross multiply
    748,727.20x = 1,123,090.80 × 667,856.80
  4. Step 4: Simplify right side
    748,727.20x = 750,063,827,797.44
  5. Step 5: Solve for x
    x = 750,063,827,797.44/748,727.20
  6. Step 6: Final answer
    x = 1,001,785.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.