Home / 1,281,641.49-1,768,660.63-722,791.46

Finding the Fourth Proportional to 1,281,641.49, 1,768,660.63 and 722,791.46

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Solution

The fourth proportional to 1,281,641.49, 1,768,660.63 and 722,791.46 is: 997,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,641.49 : 1,768,660.63 = 722,791.46 : x
  2. Step 2: Convert to fraction form
    1,281,641.49/1,768,660.63 = 722,791.46/x
  3. Step 3: Cross multiply
    1,281,641.49x = 1,768,660.63 × 722,791.46
  4. Step 4: Simplify right side
    1,281,641.49x = 1,278,372,795,733.88
  5. Step 5: Solve for x
    x = 1,278,372,795,733.88/1,281,641.49
  6. Step 6: Final answer
    x = 997,449.60

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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.