Home / 447,620.78-617,716.66-243,673.18

Finding the Fourth Proportional to 447,620.78, 617,716.66 and 243,673.18

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Solution

The fourth proportional to 447,620.78, 617,716.66 and 243,673.18 is: 336,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,620.78 : 617,716.66 = 243,673.18 : x
  2. Step 2: Convert to fraction form
    447,620.78/617,716.66 = 243,673.18/x
  3. Step 3: Cross multiply
    447,620.78x = 617,716.66 × 243,673.18
  4. Step 4: Simplify right side
    447,620.78x = 150,520,979,792.60
  5. Step 5: Solve for x
    x = 150,520,979,792.60/447,620.78
  6. Step 6: Final answer
    x = 336,268.97

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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.