Home / 1,188,228.22-1,639,755.32-644,363.84

Finding the Fourth Proportional to 1,188,228.22, 1,639,755.32 and 644,363.84

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Solution

The fourth proportional to 1,188,228.22, 1,639,755.32 and 644,363.84 is: 889,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,228.22 : 1,639,755.32 = 644,363.84 : x
  2. Step 2: Convert to fraction form
    1,188,228.22/1,639,755.32 = 644,363.84/x
  3. Step 3: Cross multiply
    1,188,228.22x = 1,639,755.32 × 644,363.84
  4. Step 4: Simplify right side
    1,188,228.22x = 1,056,599,034,655.63
  5. Step 5: Solve for x
    x = 1,056,599,034,655.63/1,188,228.22
  6. Step 6: Final answer
    x = 889,222.30

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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.