Home / 638,351.15-880,924.37-351,876.02

Finding the Fourth Proportional to 638,351.15, 880,924.37 and 351,876.02

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Solution

The fourth proportional to 638,351.15, 880,924.37 and 351,876.02 is: 485,588.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,351.15 : 880,924.37 = 351,876.02 : x
  2. Step 2: Convert to fraction form
    638,351.15/880,924.37 = 351,876.02/x
  3. Step 3: Cross multiply
    638,351.15x = 880,924.37 × 351,876.02
  4. Step 4: Simplify right side
    638,351.15x = 309,976,155,072.61
  5. Step 5: Solve for x
    x = 309,976,155,072.61/638,351.15
  6. Step 6: Final answer
    x = 485,588.78

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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.