Home / 680,629.38-1,021,054.77-231,390.42

Finding the Fourth Proportional to 680,629.38, 1,021,054.77 and 231,390.42

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Solution

The fourth proportional to 680,629.38, 1,021,054.77 and 231,390.42 is: 347,123.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,629.38 : 1,021,054.77 = 231,390.42 : x
  2. Step 2: Convert to fraction form
    680,629.38/1,021,054.77 = 231,390.42/x
  3. Step 3: Cross multiply
    680,629.38x = 1,021,054.77 × 231,390.42
  4. Step 4: Simplify right side
    680,629.38x = 236,262,292,073.30
  5. Step 5: Solve for x
    x = 236,262,292,073.30/680,629.38
  6. Step 6: Final answer
    x = 347,123.26

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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.