Home / 840,559.38-1,159,972.21-538,753.38

Finding the Fourth Proportional to 840,559.38, 1,159,972.21 and 538,753.38

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Solution

The fourth proportional to 840,559.38, 1,159,972.21 and 538,753.38 is: 743,479.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,559.38 : 1,159,972.21 = 538,753.38 : x
  2. Step 2: Convert to fraction form
    840,559.38/1,159,972.21 = 538,753.38/x
  3. Step 3: Cross multiply
    840,559.38x = 1,159,972.21 × 538,753.38
  4. Step 4: Simplify right side
    840,559.38x = 624,938,948,843.57
  5. Step 5: Solve for x
    x = 624,938,948,843.57/840,559.38
  6. Step 6: Final answer
    x = 743,479.83

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1.5x scale

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.