Home / 725,842.42-1,088,693.24-220,407.78

Finding the Fourth Proportional to 725,842.42, 1,088,693.24 and 220,407.78

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Solution

The fourth proportional to 725,842.42, 1,088,693.24 and 220,407.78 is: 330,590.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,842.42 : 1,088,693.24 = 220,407.78 : x
  2. Step 2: Convert to fraction form
    725,842.42/1,088,693.24 = 220,407.78/x
  3. Step 3: Cross multiply
    725,842.42x = 1,088,693.24 × 220,407.78
  4. Step 4: Simplify right side
    725,842.42x = 239,956,460,129.41
  5. Step 5: Solve for x
    x = 239,956,460,129.41/725,842.42
  6. Step 6: Final answer
    x = 330,590.30

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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.