Home / 861,749.89-1,291,414.92-681,040.82

Finding the Fourth Proportional to 861,749.89, 1,291,414.92 and 681,040.82

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Solution

The fourth proportional to 861,749.89, 1,291,414.92 and 681,040.82 is: 1,020,605.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,749.89 : 1,291,414.92 = 681,040.82 : x
  2. Step 2: Convert to fraction form
    861,749.89/1,291,414.92 = 681,040.82/x
  3. Step 3: Cross multiply
    861,749.89x = 1,291,414.92 × 681,040.82
  4. Step 4: Simplify right side
    861,749.89x = 879,506,269,619.96
  5. Step 5: Solve for x
    x = 879,506,269,619.96/861,749.89
  6. Step 6: Final answer
    x = 1,020,605.03

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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.