Home / 814,911.10-1,222,311.97-215,859.40

Finding the Fourth Proportional to 814,911.10, 1,222,311.97 and 215,859.40

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Solution

The fourth proportional to 814,911.10, 1,222,311.97 and 215,859.40 is: 323,774.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,911.10 : 1,222,311.97 = 215,859.40 : x
  2. Step 2: Convert to fraction form
    814,911.10/1,222,311.97 = 215,859.40/x
  3. Step 3: Cross multiply
    814,911.10x = 1,222,311.97 × 215,859.40
  4. Step 4: Simplify right side
    814,911.10x = 263,847,528,457.02
  5. Step 5: Solve for x
    x = 263,847,528,457.02/814,911.10
  6. Step 6: Final answer
    x = 323,774.62

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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.