Home / 814,341.60-1,221,988.68-340,987.32

Finding the Fourth Proportional to 814,341.60, 1,221,988.68 and 340,987.32

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Solution

The fourth proportional to 814,341.60, 1,221,988.68 and 340,987.32 is: 511,680.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,341.60 : 1,221,988.68 = 340,987.32 : x
  2. Step 2: Convert to fraction form
    814,341.60/1,221,988.68 = 340,987.32/x
  3. Step 3: Cross multiply
    814,341.60x = 1,221,988.68 × 340,987.32
  4. Step 4: Simplify right side
    814,341.60x = 416,682,645,063.54
  5. Step 5: Solve for x
    x = 416,682,645,063.54/814,341.60
  6. Step 6: Final answer
    x = 511,680.41

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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.