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Finding the Fourth Proportional to 587,198.87, 810,144.99 and 345,540.84

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Solution

The fourth proportional to 587,198.87, 810,144.99 and 345,540.84 is: 476,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,198.87 : 810,144.99 = 345,540.84 : x
  2. Step 2: Convert to fraction form
    587,198.87/810,144.99 = 345,540.84/x
  3. Step 3: Cross multiply
    587,198.87x = 810,144.99 × 345,540.84
  4. Step 4: Simplify right side
    587,198.87x = 279,938,177,328.35
  5. Step 5: Solve for x
    x = 279,938,177,328.35/587,198.87
  6. Step 6: Final answer
    x = 476,734.87

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1.5x scale

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.