Home / 814,676.80-1,222,015.20-341,312.80

Finding the Fourth Proportional to 814,676.80, 1,222,015.20 and 341,312.80

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Solution

The fourth proportional to 814,676.80, 1,222,015.20 and 341,312.80 is: 511,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,676.80 : 1,222,015.20 = 341,312.80 : x
  2. Step 2: Convert to fraction form
    814,676.80/1,222,015.20 = 341,312.80/x
  3. Step 3: Cross multiply
    814,676.80x = 1,222,015.20 × 341,312.80
  4. Step 4: Simplify right side
    814,676.80x = 417,089,429,554.56
  5. Step 5: Solve for x
    x = 417,089,429,554.56/814,676.80
  6. Step 6: Final answer
    x = 511,969.20

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Double scale
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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.