Home / 814,163.90-1,221,027.15-340,751.30

Finding the Fourth Proportional to 814,163.90, 1,221,027.15 and 340,751.30

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Solution

The fourth proportional to 814,163.90, 1,221,027.15 and 340,751.30 is: 511,035.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,163.90 : 1,221,027.15 = 340,751.30 : x
  2. Step 2: Convert to fraction form
    814,163.90/1,221,027.15 = 340,751.30/x
  3. Step 3: Cross multiply
    814,163.90x = 1,221,027.15 × 340,751.30
  4. Step 4: Simplify right side
    814,163.90x = 416,066,588,697.80
  5. Step 5: Solve for x
    x = 416,066,588,697.80/814,163.90
  6. Step 6: Final answer
    x = 511,035.42

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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.