Home / 725,840.75-1,088,892.09-299,139.45

Finding the Fourth Proportional to 725,840.75, 1,088,892.09 and 299,139.45

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Solution

The fourth proportional to 725,840.75, 1,088,892.09 and 299,139.45 is: 448,763.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,840.75 : 1,088,892.09 = 299,139.45 : x
  2. Step 2: Convert to fraction form
    725,840.75/1,088,892.09 = 299,139.45/x
  3. Step 3: Cross multiply
    725,840.75x = 1,088,892.09 × 299,139.45
  4. Step 4: Simplify right side
    725,840.75x = 325,730,587,067.79
  5. Step 5: Solve for x
    x = 325,730,587,067.79/725,840.75
  6. Step 6: Final answer
    x = 448,763.16

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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.