Home / 412,530.57-618,972.33-172,700.51

Finding the Fourth Proportional to 412,530.57, 618,972.33 and 172,700.51

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Solution

The fourth proportional to 412,530.57, 618,972.33 and 172,700.51 is: 259,124.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,530.57 : 618,972.33 = 172,700.51 : x
  2. Step 2: Convert to fraction form
    412,530.57/618,972.33 = 172,700.51/x
  3. Step 3: Cross multiply
    412,530.57x = 618,972.33 × 172,700.51
  4. Step 4: Simplify right side
    412,530.57x = 106,896,834,619.65
  5. Step 5: Solve for x
    x = 106,896,834,619.65/412,530.57
  6. Step 6: Final answer
    x = 259,124.64

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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.