Home / 1,188,227.60-1,639,754.46-644,363.22

Finding the Fourth Proportional to 1,188,227.60, 1,639,754.46 and 644,363.22

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Solution

The fourth proportional to 1,188,227.60, 1,639,754.46 and 644,363.22 is: 889,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,227.60 : 1,639,754.46 = 644,363.22 : x
  2. Step 2: Convert to fraction form
    1,188,227.60/1,639,754.46 = 644,363.22/x
  3. Step 3: Cross multiply
    1,188,227.60x = 1,639,754.46 × 644,363.22
  4. Step 4: Simplify right side
    1,188,227.60x = 1,056,597,463,854.96
  5. Step 5: Solve for x
    x = 1,056,597,463,854.96/1,188,227.60
  6. Step 6: Final answer
    x = 889,221.45

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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.