Home / 638,184.05-880,694-351,704.13

Finding the Fourth Proportional to 638,184.05, 880,694 and 351,704.13

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Solution

The fourth proportional to 638,184.05, 880,694 and 351,704.13 is: 485,351.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,184.05 : 880,694 = 351,704.13 : x
  2. Step 2: Convert to fraction form
    638,184.05/880,694 = 351,704.13/x
  3. Step 3: Cross multiply
    638,184.05x = 880,694 × 351,704.13
  4. Step 4: Simplify right side
    638,184.05x = 309,743,717,066.22
  5. Step 5: Solve for x
    x = 309,743,717,066.22/638,184.05
  6. Step 6: Final answer
    x = 485,351.71

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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.