Home / 509,041.62-763,564.65-172,084.05

Finding the Fourth Proportional to 509,041.62, 763,564.65 and 172,084.05

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Solution

The fourth proportional to 509,041.62, 763,564.65 and 172,084.05 is: 258,126.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,041.62 : 763,564.65 = 172,084.05 : x
  2. Step 2: Convert to fraction form
    509,041.62/763,564.65 = 172,084.05/x
  3. Step 3: Cross multiply
    509,041.62x = 763,564.65 × 172,084.05
  4. Step 4: Simplify right side
    509,041.62x = 131,397,297,408.83
  5. Step 5: Solve for x
    x = 131,397,297,408.83/509,041.62
  6. Step 6: Final answer
    x = 258,126.83

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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.