Home / 397,680.57-596,394.50-131,391.45

Finding the Fourth Proportional to 397,680.57, 596,394.50 and 131,391.45

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Solution

The fourth proportional to 397,680.57, 596,394.50 and 131,391.45 is: 197,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,680.57 : 596,394.50 = 131,391.45 : x
  2. Step 2: Convert to fraction form
    397,680.57/596,394.50 = 131,391.45/x
  3. Step 3: Cross multiply
    397,680.57x = 596,394.50 × 131,391.45
  4. Step 4: Simplify right side
    397,680.57x = 78,361,137,470.07
  5. Step 5: Solve for x
    x = 78,361,137,470.07/397,680.57
  6. Step 6: Final answer
    x = 197,045.43

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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.