Home / 743,974.38-1,115,793.90-211,483.62

Finding the Fourth Proportional to 743,974.38, 1,115,793.90 and 211,483.62

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Solution

The fourth proportional to 743,974.38, 1,115,793.90 and 211,483.62 is: 317,177.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,974.38 : 1,115,793.90 = 211,483.62 : x
  2. Step 2: Convert to fraction form
    743,974.38/1,115,793.90 = 211,483.62/x
  3. Step 3: Cross multiply
    743,974.38x = 1,115,793.90 × 211,483.62
  4. Step 4: Simplify right side
    743,974.38x = 235,972,133,145.92
  5. Step 5: Solve for x
    x = 235,972,133,145.92/743,974.38
  6. Step 6: Final answer
    x = 317,177.77

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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.