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Finding the Fourth Proportional to 861,610.93, 1,292,465 and 262,591.63

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Solution

The fourth proportional to 861,610.93, 1,292,465 and 262,591.63 is: 393,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,610.93 : 1,292,465 = 262,591.63 : x
  2. Step 2: Convert to fraction form
    861,610.93/1,292,465 = 262,591.63/x
  3. Step 3: Cross multiply
    861,610.93x = 1,292,465 × 262,591.63
  4. Step 4: Simplify right side
    861,610.93x = 339,390,491,067.95
  5. Step 5: Solve for x
    x = 339,390,491,067.95/861,610.93
  6. Step 6: Final answer
    x = 393,902.26

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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.