Home / 725,353.92-1,000,912.14-419,382.36

Finding the Fourth Proportional to 725,353.92, 1,000,912.14 and 419,382.36

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Solution

The fourth proportional to 725,353.92, 1,000,912.14 and 419,382.36 is: 578,703.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,353.92 : 1,000,912.14 = 419,382.36 : x
  2. Step 2: Convert to fraction form
    725,353.92/1,000,912.14 = 419,382.36/x
  3. Step 3: Cross multiply
    725,353.92x = 1,000,912.14 × 419,382.36
  4. Step 4: Simplify right side
    725,353.92x = 419,764,895,425.85
  5. Step 5: Solve for x
    x = 419,764,895,425.85/725,353.92
  6. Step 6: Final answer
    x = 578,703.56

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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.