Home / 868,449.88-1,198,447.68-486,490.33

Finding the Fourth Proportional to 868,449.88, 1,198,447.68 and 486,490.33

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Solution

The fourth proportional to 868,449.88, 1,198,447.68 and 486,490.33 is: 671,349.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,449.88 : 1,198,447.68 = 486,490.33 : x
  2. Step 2: Convert to fraction form
    868,449.88/1,198,447.68 = 486,490.33/x
  3. Step 3: Cross multiply
    868,449.88x = 1,198,447.68 × 486,490.33
  4. Step 4: Simplify right side
    868,449.88x = 583,033,207,330.94
  5. Step 5: Solve for x
    x = 583,033,207,330.94/868,449.88
  6. Step 6: Final answer
    x = 671,349.29

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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.