Home / 725,806.86-1,088,639.89-220,372.22

Finding the Fourth Proportional to 725,806.86, 1,088,639.89 and 220,372.22

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Solution

The fourth proportional to 725,806.86, 1,088,639.89 and 220,372.22 is: 330,536.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,806.86 : 1,088,639.89 = 220,372.22 : x
  2. Step 2: Convert to fraction form
    725,806.86/1,088,639.89 = 220,372.22/x
  3. Step 3: Cross multiply
    725,806.86x = 1,088,639.89 × 220,372.22
  4. Step 4: Simplify right side
    725,806.86x = 239,905,989,533.38
  5. Step 5: Solve for x
    x = 239,905,989,533.38/725,806.86
  6. Step 6: Final answer
    x = 330,536.96

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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.