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Finding the Fourth Proportional to 486,197.64, 670,765.46 and 304,593.21

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Solution

The fourth proportional to 486,197.64, 670,765.46 and 304,593.21 is: 420,221.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,197.64 : 670,765.46 = 304,593.21 : x
  2. Step 2: Convert to fraction form
    486,197.64/670,765.46 = 304,593.21/x
  3. Step 3: Cross multiply
    486,197.64x = 670,765.46 × 304,593.21
  4. Step 4: Simplify right side
    486,197.64x = 204,310,603,095.56
  5. Step 5: Solve for x
    x = 204,310,603,095.56/486,197.64
  6. Step 6: Final answer
    x = 420,221.30

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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.