Home / 671,789.74-1,008,007.27-419,005.35

Finding the Fourth Proportional to 671,789.74, 1,008,007.27 and 419,005.35

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Solution

The fourth proportional to 671,789.74, 1,008,007.27 and 419,005.35 is: 628,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,789.74 : 1,008,007.27 = 419,005.35 : x
  2. Step 2: Convert to fraction form
    671,789.74/1,008,007.27 = 419,005.35/x
  3. Step 3: Cross multiply
    671,789.74x = 1,008,007.27 × 419,005.35
  4. Step 4: Simplify right side
    671,789.74x = 422,360,431,833.83
  5. Step 5: Solve for x
    x = 422,360,431,833.83/671,789.74
  6. Step 6: Final answer
    x = 628,709.26

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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.