Home / 492,390.88-738,918.25-172,545.62

Finding the Fourth Proportional to 492,390.88, 738,918.25 and 172,545.62

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Solution

The fourth proportional to 492,390.88, 738,918.25 and 172,545.62 is: 258,934.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,390.88 : 738,918.25 = 172,545.62 : x
  2. Step 2: Convert to fraction form
    492,390.88/738,918.25 = 172,545.62/x
  3. Step 3: Cross multiply
    492,390.88x = 738,918.25 × 172,545.62
  4. Step 4: Simplify right side
    492,390.88x = 127,497,107,575.57
  5. Step 5: Solve for x
    x = 127,497,107,575.57/492,390.88
  6. Step 6: Final answer
    x = 258,934.75

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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.