Home / 411,530.74-617,170.56-145,229.06

Finding the Fourth Proportional to 411,530.74, 617,170.56 and 145,229.06

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Solution

The fourth proportional to 411,530.74, 617,170.56 and 145,229.06 is: 217,799.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,530.74 : 617,170.56 = 145,229.06 : x
  2. Step 2: Convert to fraction form
    411,530.74/617,170.56 = 145,229.06/x
  3. Step 3: Cross multiply
    411,530.74x = 617,170.56 × 145,229.06
  4. Step 4: Simplify right side
    411,530.74x = 89,631,099,562.33
  5. Step 5: Solve for x
    x = 89,631,099,562.33/411,530.74
  6. Step 6: Final answer
    x = 217,799.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.