Home / 725,027.02-1,000,311.60-418,991.92

Finding the Fourth Proportional to 725,027.02, 1,000,311.60 and 418,991.92

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Solution

The fourth proportional to 725,027.02, 1,000,311.60 and 418,991.92 is: 578,078.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,027.02 : 1,000,311.60 = 418,991.92 : x
  2. Step 2: Convert to fraction form
    725,027.02/1,000,311.60 = 418,991.92/x
  3. Step 3: Cross multiply
    725,027.02x = 1,000,311.60 × 418,991.92
  4. Step 4: Simplify right side
    725,027.02x = 419,122,477,882.27
  5. Step 5: Solve for x
    x = 419,122,477,882.27/725,027.02
  6. Step 6: Final answer
    x = 578,078.43

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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.