Home / 1,026,143.28-1,539,241.20-486,272.88

Finding the Fourth Proportional to 1,026,143.28, 1,539,241.20 and 486,272.88

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Solution

The fourth proportional to 1,026,143.28, 1,539,241.20 and 486,272.88 is: 729,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,143.28 : 1,539,241.20 = 486,272.88 : x
  2. Step 2: Convert to fraction form
    1,026,143.28/1,539,241.20 = 486,272.88/x
  3. Step 3: Cross multiply
    1,026,143.28x = 1,539,241.20 × 486,272.88
  4. Step 4: Simplify right side
    1,026,143.28x = 748,491,251,338.66
  5. Step 5: Solve for x
    x = 748,491,251,338.66/1,026,143.28
  6. Step 6: Final answer
    x = 729,421.77

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Double scale
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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.