Home / 725,847.20-1,088,700.40-220,412.55

Finding the Fourth Proportional to 725,847.20, 1,088,700.40 and 220,412.55

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Solution

The fourth proportional to 725,847.20, 1,088,700.40 and 220,412.55 is: 330,597.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,847.20 : 1,088,700.40 = 220,412.55 : x
  2. Step 2: Convert to fraction form
    725,847.20/1,088,700.40 = 220,412.55/x
  3. Step 3: Cross multiply
    725,847.20x = 1,088,700.40 × 220,412.55
  4. Step 4: Simplify right side
    725,847.20x = 239,963,230,798.99
  5. Step 5: Solve for x
    x = 239,963,230,798.99/725,847.20
  6. Step 6: Final answer
    x = 330,597.45

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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.