Home / 672,441.40-1,009,212.90-667,192.60

Finding the Fourth Proportional to 672,441.40, 1,009,212.90 and 667,192.60

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Solution

The fourth proportional to 672,441.40, 1,009,212.90 and 667,192.60 is: 1,001,335.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,441.40 : 1,009,212.90 = 667,192.60 : x
  2. Step 2: Convert to fraction form
    672,441.40/1,009,212.90 = 667,192.60/x
  3. Step 3: Cross multiply
    672,441.40x = 1,009,212.90 × 667,192.60
  4. Step 4: Simplify right side
    672,441.40x = 673,339,378,704.54
  5. Step 5: Solve for x
    x = 673,339,378,704.54/672,441.40
  6. Step 6: Final answer
    x = 1,001,335.40

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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.