Home / 814,558.60-1,221,983.70-341,291.80

Finding the Fourth Proportional to 814,558.60, 1,221,983.70 and 341,291.80

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Solution

The fourth proportional to 814,558.60, 1,221,983.70 and 341,291.80 is: 511,998.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,558.60 : 1,221,983.70 = 341,291.80 : x
  2. Step 2: Convert to fraction form
    814,558.60/1,221,983.70 = 341,291.80/x
  3. Step 3: Cross multiply
    814,558.60x = 1,221,983.70 × 341,291.80
  4. Step 4: Simplify right side
    814,558.60x = 417,053,016,543.66
  5. Step 5: Solve for x
    x = 417,053,016,543.66/814,558.60
  6. Step 6: Final answer
    x = 511,998.79

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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.