Home / 684,874.60-1,027,388.70-211,556.20

Finding the Fourth Proportional to 684,874.60, 1,027,388.70 and 211,556.20

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Solution

The fourth proportional to 684,874.60, 1,027,388.70 and 211,556.20 is: 317,358.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,874.60 : 1,027,388.70 = 211,556.20 : x
  2. Step 2: Convert to fraction form
    684,874.60/1,027,388.70 = 211,556.20/x
  3. Step 3: Cross multiply
    684,874.60x = 1,027,388.70 × 211,556.20
  4. Step 4: Simplify right side
    684,874.60x = 217,350,449,294.94
  5. Step 5: Solve for x
    x = 217,350,449,294.94/684,874.60
  6. Step 6: Final answer
    x = 317,358.02

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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.