Home / 1,288,671.50-1,778,262.57-744,842.49

Finding the Fourth Proportional to 1,288,671.50, 1,778,262.57 and 744,842.49

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Solution

The fourth proportional to 1,288,671.50, 1,778,262.57 and 744,842.49 is: 1,027,822.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,671.50 : 1,778,262.57 = 744,842.49 : x
  2. Step 2: Convert to fraction form
    1,288,671.50/1,778,262.57 = 744,842.49/x
  3. Step 3: Cross multiply
    1,288,671.50x = 1,778,262.57 × 744,842.49
  4. Step 4: Simplify right side
    1,288,671.50x = 1,324,525,520,512.60
  5. Step 5: Solve for x
    x = 1,324,525,520,512.60/1,288,671.50
  6. Step 6: Final answer
    x = 1,027,822.47

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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.