Home / 725,447.80-1,087,739.70-445,166.20

Finding the Fourth Proportional to 725,447.80, 1,087,739.70 and 445,166.20

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Solution

The fourth proportional to 725,447.80, 1,087,739.70 and 445,166.20 is: 667,484.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,447.80 : 1,087,739.70 = 445,166.20 : x
  2. Step 2: Convert to fraction form
    725,447.80/1,087,739.70 = 445,166.20/x
  3. Step 3: Cross multiply
    725,447.80x = 1,087,739.70 × 445,166.20
  4. Step 4: Simplify right side
    725,447.80x = 484,224,948,838.14
  5. Step 5: Solve for x
    x = 484,224,948,838.14/725,447.80
  6. Step 6: Final answer
    x = 667,484.21

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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.