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Finding the Fourth Proportional to 427,057.88, 589,346.87 and 254,990.87

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Solution

The fourth proportional to 427,057.88, 589,346.87 and 254,990.87 is: 351,891.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,057.88 : 589,346.87 = 254,990.87 : x
  2. Step 2: Convert to fraction form
    427,057.88/589,346.87 = 254,990.87/x
  3. Step 3: Cross multiply
    427,057.88x = 589,346.87 × 254,990.87
  4. Step 4: Simplify right side
    427,057.88x = 150,278,073,223.92
  5. Step 5: Solve for x
    x = 150,278,073,223.92/427,057.88
  6. Step 6: Final answer
    x = 351,891.59

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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.