Home / 725,690.45-1,088,539.14-220,255.81

Finding the Fourth Proportional to 725,690.45, 1,088,539.14 and 220,255.81

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Solution

The fourth proportional to 725,690.45, 1,088,539.14 and 220,255.81 is: 330,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,690.45 : 1,088,539.14 = 220,255.81 : x
  2. Step 2: Convert to fraction form
    725,690.45/1,088,539.14 = 220,255.81/x
  3. Step 3: Cross multiply
    725,690.45x = 1,088,539.14 × 220,255.81
  4. Step 4: Simplify right side
    725,690.45x = 239,757,070,548.04
  5. Step 5: Solve for x
    x = 239,757,070,548.04/725,690.45
  6. Step 6: Final answer
    x = 330,384.77

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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.