Home / 494,894.18-742,334.79-120,920.42

Finding the Fourth Proportional to 494,894.18, 742,334.79 and 120,920.42

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Solution

The fourth proportional to 494,894.18, 742,334.79 and 120,920.42 is: 181,379.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,894.18 : 742,334.79 = 120,920.42 : x
  2. Step 2: Convert to fraction form
    494,894.18/742,334.79 = 120,920.42/x
  3. Step 3: Cross multiply
    494,894.18x = 742,334.79 × 120,920.42
  4. Step 4: Simplify right side
    494,894.18x = 89,763,436,896.70
  5. Step 5: Solve for x
    x = 89,763,436,896.70/494,894.18
  6. Step 6: Final answer
    x = 181,379.05

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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.