Home / 814,346.60-1,221,665.70-341,079.80

Finding the Fourth Proportional to 814,346.60, 1,221,665.70 and 341,079.80

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Solution

The fourth proportional to 814,346.60, 1,221,665.70 and 341,079.80 is: 511,680.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,346.60 : 1,221,665.70 = 341,079.80 : x
  2. Step 2: Convert to fraction form
    814,346.60/1,221,665.70 = 341,079.80/x
  3. Step 3: Cross multiply
    814,346.60x = 1,221,665.70 × 341,079.80
  4. Step 4: Simplify right side
    814,346.60x = 416,685,492,622.86
  5. Step 5: Solve for x
    x = 416,685,492,622.86/814,346.60
  6. Step 6: Final answer
    x = 511,680.77

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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.