Home / 1,120,231.76-1,545,858.32-636,729.76

Finding the Fourth Proportional to 1,120,231.76, 1,545,858.32 and 636,729.76

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Solution

The fourth proportional to 1,120,231.76, 1,545,858.32 and 636,729.76 is: 878,652.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,231.76 : 1,545,858.32 = 636,729.76 : x
  2. Step 2: Convert to fraction form
    1,120,231.76/1,545,858.32 = 636,729.76/x
  3. Step 3: Cross multiply
    1,120,231.76x = 1,545,858.32 × 636,729.76
  4. Step 4: Simplify right side
    1,120,231.76x = 984,293,997,087.60
  5. Step 5: Solve for x
    x = 984,293,997,087.60/1,120,231.76
  6. Step 6: Final answer
    x = 878,652.11

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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.