Home / 815,833.72-1,125,784.54-471,691.73

Finding the Fourth Proportional to 815,833.72, 1,125,784.54 and 471,691.73

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Solution

The fourth proportional to 815,833.72, 1,125,784.54 and 471,691.73 is: 650,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,833.72 : 1,125,784.54 = 471,691.73 : x
  2. Step 2: Convert to fraction form
    815,833.72/1,125,784.54 = 471,691.73/x
  3. Step 3: Cross multiply
    815,833.72x = 1,125,784.54 × 471,691.73
  4. Step 4: Simplify right side
    815,833.72x = 531,023,258,915.09
  5. Step 5: Solve for x
    x = 531,023,258,915.09/815,833.72
  6. Step 6: Final answer
    x = 650,896.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.