Home / 765,633.73-1,148,278.37-225,774.15

Finding the Fourth Proportional to 765,633.73, 1,148,278.37 and 225,774.15

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Solution

The fourth proportional to 765,633.73, 1,148,278.37 and 225,774.15 is: 338,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,633.73 : 1,148,278.37 = 225,774.15 : x
  2. Step 2: Convert to fraction form
    765,633.73/1,148,278.37 = 225,774.15/x
  3. Step 3: Cross multiply
    765,633.73x = 1,148,278.37 × 225,774.15
  4. Step 4: Simplify right side
    765,633.73x = 259,251,570,241.23
  5. Step 5: Solve for x
    x = 259,251,570,241.23/765,633.73
  6. Step 6: Final answer
    x = 338,610.43

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Double scale
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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.