Home / 667,648.80-1,000,112.40-414,151.20

Finding the Fourth Proportional to 667,648.80, 1,000,112.40 and 414,151.20

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Solution

The fourth proportional to 667,648.80, 1,000,112.40 and 414,151.20 is: 620,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,648.80 : 1,000,112.40 = 414,151.20 : x
  2. Step 2: Convert to fraction form
    667,648.80/1,000,112.40 = 414,151.20/x
  3. Step 3: Cross multiply
    667,648.80x = 1,000,112.40 × 414,151.20
  4. Step 4: Simplify right side
    667,648.80x = 414,197,750,594.88
  5. Step 5: Solve for x
    x = 414,197,750,594.88/667,648.80
  6. Step 6: Final answer
    x = 620,382.68

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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.