Home / 638,086.48-880,578.16-351,625.02

Finding the Fourth Proportional to 638,086.48, 880,578.16 and 351,625.02

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Solution

The fourth proportional to 638,086.48, 880,578.16 and 351,625.02 is: 485,252.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,086.48 : 880,578.16 = 351,625.02 : x
  2. Step 2: Convert to fraction form
    638,086.48/880,578.16 = 351,625.02/x
  3. Step 3: Cross multiply
    638,086.48x = 880,578.16 × 351,625.02
  4. Step 4: Simplify right side
    638,086.48x = 309,633,313,121.56
  5. Step 5: Solve for x
    x = 309,633,313,121.56/638,086.48
  6. Step 6: Final answer
    x = 485,252.90

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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.