Home / 725,565.45-1,088,350.82-220,130.72

Finding the Fourth Proportional to 725,565.45, 1,088,350.82 and 220,130.72

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Solution

The fourth proportional to 725,565.45, 1,088,350.82 and 220,130.72 is: 330,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,565.45 : 1,088,350.82 = 220,130.72 : x
  2. Step 2: Convert to fraction form
    725,565.45/1,088,350.82 = 220,130.72/x
  3. Step 3: Cross multiply
    725,565.45x = 1,088,350.82 × 220,130.72
  4. Step 4: Simplify right side
    725,565.45x = 239,579,443,076.78
  5. Step 5: Solve for x
    x = 239,579,443,076.78/725,565.45
  6. Step 6: Final answer
    x = 330,196.87

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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.