Home / 1,120,234.45-1,545,657.81-636,761.53

Finding the Fourth Proportional to 1,120,234.45, 1,545,657.81 and 636,761.53

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Solution

The fourth proportional to 1,120,234.45, 1,545,657.81 and 636,761.53 is: 878,579.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,234.45 : 1,545,657.81 = 636,761.53 : x
  2. Step 2: Convert to fraction form
    1,120,234.45/1,545,657.81 = 636,761.53/x
  3. Step 3: Cross multiply
    1,120,234.45x = 1,545,657.81 × 636,761.53
  4. Step 4: Simplify right side
    1,120,234.45x = 984,215,431,952.05
  5. Step 5: Solve for x
    x = 984,215,431,952.05/1,120,234.45
  6. Step 6: Final answer
    x = 878,579.87

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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.