Home / 861,749.51-1,291,414.36-681,040.44

Finding the Fourth Proportional to 861,749.51, 1,291,414.36 and 681,040.44

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Solution

The fourth proportional to 861,749.51, 1,291,414.36 and 681,040.44 is: 1,020,604.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,749.51 : 1,291,414.36 = 681,040.44 : x
  2. Step 2: Convert to fraction form
    861,749.51/1,291,414.36 = 681,040.44/x
  3. Step 3: Cross multiply
    861,749.51x = 1,291,414.36 × 681,040.44
  4. Step 4: Simplify right side
    861,749.51x = 879,505,402,254.12
  5. Step 5: Solve for x
    x = 879,505,402,254.12/861,749.51
  6. Step 6: Final answer
    x = 1,020,604.47

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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.