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Finding the Fourth Proportional to 617,170.62, 925,830 and 217,729.02

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Solution

The fourth proportional to 617,170.62, 925,830 and 217,729.02 is: 326,619.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,170.62 : 925,830 = 217,729.02 : x
  2. Step 2: Convert to fraction form
    617,170.62/925,830 = 217,729.02/x
  3. Step 3: Cross multiply
    617,170.62x = 925,830 × 217,729.02
  4. Step 4: Simplify right side
    617,170.62x = 201,580,058,586.60
  5. Step 5: Solve for x
    x = 201,580,058,586.60/617,170.62
  6. Step 6: Final answer
    x = 326,619.66

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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.