Home / 1,101,972.09-1,520,670.30-611,972.72

Finding the Fourth Proportional to 1,101,972.09, 1,520,670.30 and 611,972.72

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Solution

The fourth proportional to 1,101,972.09, 1,520,670.30 and 611,972.72 is: 844,493.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,972.09 : 1,520,670.30 = 611,972.72 : x
  2. Step 2: Convert to fraction form
    1,101,972.09/1,520,670.30 = 611,972.72/x
  3. Step 3: Cross multiply
    1,101,972.09x = 1,520,670.30 × 611,972.72
  4. Step 4: Simplify right side
    1,101,972.09x = 930,608,729,815.97
  5. Step 5: Solve for x
    x = 930,608,729,815.97/1,101,972.09
  6. Step 6: Final answer
    x = 844,493.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.