Home / 397,769.16-548,641.98-261,759.72

Finding the Fourth Proportional to 397,769.16, 548,641.98 and 261,759.72

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Solution

The fourth proportional to 397,769.16, 548,641.98 and 261,759.72 is: 361,044.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,769.16 : 548,641.98 = 261,759.72 : x
  2. Step 2: Convert to fraction form
    397,769.16/548,641.98 = 261,759.72/x
  3. Step 3: Cross multiply
    397,769.16x = 548,641.98 × 261,759.72
  4. Step 4: Simplify right side
    397,769.16x = 143,612,371,065.05
  5. Step 5: Solve for x
    x = 143,612,371,065.05/397,769.16
  6. Step 6: Final answer
    x = 361,044.51

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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.