Home / 684,882.60-1,027,400.70-211,564.20

Finding the Fourth Proportional to 684,882.60, 1,027,400.70 and 211,564.20

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Solution

The fourth proportional to 684,882.60, 1,027,400.70 and 211,564.20 is: 317,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,882.60 : 1,027,400.70 = 211,564.20 : x
  2. Step 2: Convert to fraction form
    684,882.60/1,027,400.70 = 211,564.20/x
  3. Step 3: Cross multiply
    684,882.60x = 1,027,400.70 × 211,564.20
  4. Step 4: Simplify right side
    684,882.60x = 217,361,207,174.94
  5. Step 5: Solve for x
    x = 217,361,207,174.94/684,882.60
  6. Step 6: Final answer
    x = 317,370.02

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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.