Home / 672,087.40-1,008,139.30-198,782.33

Finding the Fourth Proportional to 672,087.40, 1,008,139.30 and 198,782.33

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Solution

The fourth proportional to 672,087.40, 1,008,139.30 and 198,782.33 is: 298,175.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,087.40 : 1,008,139.30 = 198,782.33 : x
  2. Step 2: Convert to fraction form
    672,087.40/1,008,139.30 = 198,782.33/x
  3. Step 3: Cross multiply
    672,087.40x = 1,008,139.30 × 198,782.33
  4. Step 4: Simplify right side
    672,087.40x = 200,400,273,480.92
  5. Step 5: Solve for x
    x = 200,400,273,480.92/672,087.40
  6. Step 6: Final answer
    x = 298,175.91

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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.