Home / 861,870.29-1,292,801.92-262,829.70

Finding the Fourth Proportional to 861,870.29, 1,292,801.92 and 262,829.70

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Solution

The fourth proportional to 861,870.29, 1,292,801.92 and 262,829.70 is: 394,243.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,870.29 : 1,292,801.92 = 262,829.70 : x
  2. Step 2: Convert to fraction form
    861,870.29/1,292,801.92 = 262,829.70/x
  3. Step 3: Cross multiply
    861,870.29x = 1,292,801.92 × 262,829.70
  4. Step 4: Simplify right side
    861,870.29x = 339,786,740,135.95
  5. Step 5: Solve for x
    x = 339,786,740,135.95/861,870.29
  6. Step 6: Final answer
    x = 394,243.48

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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.