Home / 638,344.94-880,955.43-351,864.38

Finding the Fourth Proportional to 638,344.94, 880,955.43 and 351,864.38

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Solution

The fourth proportional to 638,344.94, 880,955.43 and 351,864.38 is: 485,594.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,344.94 : 880,955.43 = 351,864.38 : x
  2. Step 2: Convert to fraction form
    638,344.94/880,955.43 = 351,864.38/x
  3. Step 3: Cross multiply
    638,344.94x = 880,955.43 × 351,864.38
  4. Step 4: Simplify right side
    638,344.94x = 309,976,836,184.58
  5. Step 5: Solve for x
    x = 309,976,836,184.58/638,344.94
  6. Step 6: Final answer
    x = 485,594.57

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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.