Home / 814,201.40-1,221,083.40-340,788.80

Finding the Fourth Proportional to 814,201.40, 1,221,083.40 and 340,788.80

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Solution

The fourth proportional to 814,201.40, 1,221,083.40 and 340,788.80 is: 511,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,201.40 : 1,221,083.40 = 340,788.80 : x
  2. Step 2: Convert to fraction form
    814,201.40/1,221,083.40 = 340,788.80/x
  3. Step 3: Cross multiply
    814,201.40x = 1,221,083.40 × 340,788.80
  4. Step 4: Simplify right side
    814,201.40x = 416,131,546,585.92
  5. Step 5: Solve for x
    x = 416,131,546,585.92/814,201.40
  6. Step 6: Final answer
    x = 511,091.66

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1.5x scale

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.