Home / 801,121.89-1,201,371.40-288,650.38

Finding the Fourth Proportional to 801,121.89, 1,201,371.40 and 288,650.38

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Solution

The fourth proportional to 801,121.89, 1,201,371.40 and 288,650.38 is: 432,863.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,121.89 : 1,201,371.40 = 288,650.38 : x
  2. Step 2: Convert to fraction form
    801,121.89/1,201,371.40 = 288,650.38/x
  3. Step 3: Cross multiply
    801,121.89x = 1,201,371.40 × 288,650.38
  4. Step 4: Simplify right side
    801,121.89x = 346,776,311,131.13
  5. Step 5: Solve for x
    x = 346,776,311,131.13/801,121.89
  6. Step 6: Final answer
    x = 432,863.36

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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.