Home / 758,403-1,137,791.61-225,921.96

Finding the Fourth Proportional to 758,403, 1,137,791.61 and 225,921.96

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Solution

The fourth proportional to 758,403, 1,137,791.61 and 225,921.96 is: 338,938.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,403 : 1,137,791.61 = 225,921.96 : x
  2. Step 2: Convert to fraction form
    758,403/1,137,791.61 = 225,921.96/x
  3. Step 3: Cross multiply
    758,403x = 1,137,791.61 × 225,921.96
  4. Step 4: Simplify right side
    758,403x = 257,052,110,602.76
  5. Step 5: Solve for x
    x = 257,052,110,602.76/758,403
  6. Step 6: Final answer
    x = 338,938.68

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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.