Home / 2,009,791.40-3,012,992.57-871,696.78

Finding the Fourth Proportional to 2,009,791.40, 3,012,992.57 and 871,696.78

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Solution

The fourth proportional to 2,009,791.40, 3,012,992.57 and 871,696.78 is: 1,306,810.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,009,791.40 : 3,012,992.57 = 871,696.78 : x
  2. Step 2: Convert to fraction form
    2,009,791.40/3,012,992.57 = 871,696.78/x
  3. Step 3: Cross multiply
    2,009,791.40x = 3,012,992.57 × 871,696.78
  4. Step 4: Simplify right side
    2,009,791.40x = 2,626,415,916,079.69
  5. Step 5: Solve for x
    x = 2,626,415,916,079.69/2,009,791.40
  6. Step 6: Final answer
    x = 1,306,810.21

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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.