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Finding the Fourth Proportional to 552,401.87, 762,419.39 and 345,766.14

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Solution

The fourth proportional to 552,401.87, 762,419.39 and 345,766.14 is: 477,222.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,401.87 : 762,419.39 = 345,766.14 : x
  2. Step 2: Convert to fraction form
    552,401.87/762,419.39 = 345,766.14/x
  3. Step 3: Cross multiply
    552,401.87x = 762,419.39 × 345,766.14
  4. Step 4: Simplify right side
    552,401.87x = 263,618,807,812.62
  5. Step 5: Solve for x
    x = 263,618,807,812.62/552,401.87
  6. Step 6: Final answer
    x = 477,222.88

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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.