Home / 814,749.55-1,222,119.46-443,134.51

Finding the Fourth Proportional to 814,749.55, 1,222,119.46 and 443,134.51

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Solution

The fourth proportional to 814,749.55, 1,222,119.46 and 443,134.51 is: 664,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,749.55 : 1,222,119.46 = 443,134.51 : x
  2. Step 2: Convert to fraction form
    814,749.55/1,222,119.46 = 443,134.51/x
  3. Step 3: Cross multiply
    814,749.55x = 1,222,119.46 × 443,134.51
  4. Step 4: Simplify right side
    814,749.55x = 541,563,305,567.18
  5. Step 5: Solve for x
    x = 541,563,305,567.18/814,749.55
  6. Step 6: Final answer
    x = 664,699.12

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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.