Home / 815,359.04-1,223,135.82-394,332.38

Finding the Fourth Proportional to 815,359.04, 1,223,135.82 and 394,332.38

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Solution

The fourth proportional to 815,359.04, 1,223,135.82 and 394,332.38 is: 591,545.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,359.04 : 1,223,135.82 = 394,332.38 : x
  2. Step 2: Convert to fraction form
    815,359.04/1,223,135.82 = 394,332.38/x
  3. Step 3: Cross multiply
    815,359.04x = 1,223,135.82 × 394,332.38
  4. Step 4: Simplify right side
    815,359.04x = 482,322,052,848.17
  5. Step 5: Solve for x
    x = 482,322,052,848.17/815,359.04
  6. Step 6: Final answer
    x = 591,545.60

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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.