Home / 861,729.95-1,292,788.76-262,751.66

Finding the Fourth Proportional to 861,729.95, 1,292,788.76 and 262,751.66

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Solution

The fourth proportional to 861,729.95, 1,292,788.76 and 262,751.66 is: 394,186.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,729.95 : 1,292,788.76 = 262,751.66 : x
  2. Step 2: Convert to fraction form
    861,729.95/1,292,788.76 = 262,751.66/x
  3. Step 3: Cross multiply
    861,729.95x = 1,292,788.76 × 262,751.66
  4. Step 4: Simplify right side
    861,729.95x = 339,682,392,719.34
  5. Step 5: Solve for x
    x = 339,682,392,719.34/861,729.95
  6. Step 6: Final answer
    x = 394,186.59

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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.