Home / 638,057.60-880,558.71-351,577.61

Finding the Fourth Proportional to 638,057.60, 880,558.71 and 351,577.61

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Solution

The fourth proportional to 638,057.60, 880,558.71 and 351,577.61 is: 485,198.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,057.60 : 880,558.71 = 351,577.61 : x
  2. Step 2: Convert to fraction form
    638,057.60/880,558.71 = 351,577.61/x
  3. Step 3: Cross multiply
    638,057.60x = 880,558.71 × 351,577.61
  4. Step 4: Simplify right side
    638,057.60x = 309,584,726,726.48
  5. Step 5: Solve for x
    x = 309,584,726,726.48/638,057.60
  6. Step 6: Final answer
    x = 485,198.71

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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.