Home / 509,041.11-763,563.89-172,083.54

Finding the Fourth Proportional to 509,041.11, 763,563.89 and 172,083.54

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Solution

The fourth proportional to 509,041.11, 763,563.89 and 172,083.54 is: 258,126.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,041.11 : 763,563.89 = 172,083.54 : x
  2. Step 2: Convert to fraction form
    509,041.11/763,563.89 = 172,083.54/x
  3. Step 3: Cross multiply
    509,041.11x = 763,563.89 × 172,083.54
  4. Step 4: Simplify right side
    509,041.11x = 131,396,777,207.37
  5. Step 5: Solve for x
    x = 131,396,777,207.37/509,041.11
  6. Step 6: Final answer
    x = 258,126.06

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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.