Home / 509,042.11-763,565.39-172,084.54

Finding the Fourth Proportional to 509,042.11, 763,565.39 and 172,084.54

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Solution

The fourth proportional to 509,042.11, 763,565.39 and 172,084.54 is: 258,127.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,042.11 : 763,565.39 = 172,084.54 : x
  2. Step 2: Convert to fraction form
    509,042.11/763,565.39 = 172,084.54/x
  3. Step 3: Cross multiply
    509,042.11x = 763,565.39 × 172,084.54
  4. Step 4: Simplify right side
    509,042.11x = 131,397,798,898.07
  5. Step 5: Solve for x
    x = 131,397,798,898.07/509,042.11
  6. Step 6: Final answer
    x = 258,127.56

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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.