Home / 1,139,239.22-1,707,853.14-429,765.48

Finding the Fourth Proportional to 1,139,239.22, 1,707,853.14 and 429,765.48

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Solution

The fourth proportional to 1,139,239.22, 1,707,853.14 and 429,765.48 is: 644,268.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,239.22 : 1,707,853.14 = 429,765.48 : x
  2. Step 2: Convert to fraction form
    1,139,239.22/1,707,853.14 = 429,765.48/x
  3. Step 3: Cross multiply
    1,139,239.22x = 1,707,853.14 × 429,765.48
  4. Step 4: Simplify right side
    1,139,239.22x = 733,976,324,481.61
  5. Step 5: Solve for x
    x = 733,976,324,481.61/1,139,239.22
  6. Step 6: Final answer
    x = 644,268.84

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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.