Home / 412,540.52-618,987.20-172,710.44

Finding the Fourth Proportional to 412,540.52, 618,987.20 and 172,710.44

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Solution

The fourth proportional to 412,540.52, 618,987.20 and 172,710.44 is: 259,139.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,540.52 : 618,987.20 = 172,710.44 : x
  2. Step 2: Convert to fraction form
    412,540.52/618,987.20 = 172,710.44/x
  3. Step 3: Cross multiply
    412,540.52x = 618,987.20 × 172,710.44
  4. Step 4: Simplify right side
    412,540.52x = 106,905,551,666.37
  5. Step 5: Solve for x
    x = 106,905,551,666.37/412,540.52
  6. Step 6: Final answer
    x = 259,139.52

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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.