Home / 725,418.60-1,088,126.30-192,939.72

Finding the Fourth Proportional to 725,418.60, 1,088,126.30 and 192,939.72

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Solution

The fourth proportional to 725,418.60, 1,088,126.30 and 192,939.72 is: 289,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,418.60 : 1,088,126.30 = 192,939.72 : x
  2. Step 2: Convert to fraction form
    725,418.60/1,088,126.30 = 192,939.72/x
  3. Step 3: Cross multiply
    725,418.60x = 1,088,126.30 × 192,939.72
  4. Step 4: Simplify right side
    725,418.60x = 209,942,783,646.64
  5. Step 5: Solve for x
    x = 209,942,783,646.64/725,418.60
  6. Step 6: Final answer
    x = 289,409.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.