Home / 861,635.15-1,288,852.74-605,449.76

Finding the Fourth Proportional to 861,635.15, 1,288,852.74 and 605,449.76

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Solution

The fourth proportional to 861,635.15, 1,288,852.74 and 605,449.76 is: 905,645.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,635.15 : 1,288,852.74 = 605,449.76 : x
  2. Step 2: Convert to fraction form
    861,635.15/1,288,852.74 = 605,449.76/x
  3. Step 3: Cross multiply
    861,635.15x = 1,288,852.74 × 605,449.76
  4. Step 4: Simplify right side
    861,635.15x = 780,335,585,330.47
  5. Step 5: Solve for x
    x = 780,335,585,330.47/861,635.15
  6. Step 6: Final answer
    x = 905,645.03

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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.