Home / 868,451.31-1,198,449.66-486,491.76

Finding the Fourth Proportional to 868,451.31, 1,198,449.66 and 486,491.76

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Solution

The fourth proportional to 868,451.31, 1,198,449.66 and 486,491.76 is: 671,351.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,451.31 : 1,198,449.66 = 486,491.76 : x
  2. Step 2: Convert to fraction form
    868,451.31/1,198,449.66 = 486,491.76/x
  3. Step 3: Cross multiply
    868,451.31x = 1,198,449.66 × 486,491.76
  4. Step 4: Simplify right side
    868,451.31x = 583,035,884,364.80
  5. Step 5: Solve for x
    x = 583,035,884,364.80/868,451.31
  6. Step 6: Final answer
    x = 671,351.26

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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.