Home / 1,102,990.40-1,522,163.70-612,980.56

Finding the Fourth Proportional to 1,102,990.40, 1,522,163.70 and 612,980.56

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Solution

The fourth proportional to 1,102,990.40, 1,522,163.70 and 612,980.56 is: 845,933.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,990.40 : 1,522,163.70 = 612,980.56 : x
  2. Step 2: Convert to fraction form
    1,102,990.40/1,522,163.70 = 612,980.56/x
  3. Step 3: Cross multiply
    1,102,990.40x = 1,522,163.70 × 612,980.56
  4. Step 4: Simplify right side
    1,102,990.40x = 933,056,757,237.67
  5. Step 5: Solve for x
    x = 933,056,757,237.67/1,102,990.40
  6. Step 6: Final answer
    x = 845,933.71

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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.