Home / 815,357.54-1,223,133.57-394,330.88

Finding the Fourth Proportional to 815,357.54, 1,223,133.57 and 394,330.88

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Solution

The fourth proportional to 815,357.54, 1,223,133.57 and 394,330.88 is: 591,543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,357.54 : 1,223,133.57 = 394,330.88 : x
  2. Step 2: Convert to fraction form
    815,357.54/1,223,133.57 = 394,330.88/x
  3. Step 3: Cross multiply
    815,357.54x = 1,223,133.57 × 394,330.88
  4. Step 4: Simplify right side
    815,357.54x = 482,319,337,015.64
  5. Step 5: Solve for x
    x = 482,319,337,015.64/815,357.54
  6. Step 6: Final answer
    x = 591,543.36

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.