Home / 1,204,969.76-1,662,860.24-668,425.76

Finding the Fourth Proportional to 1,204,969.76, 1,662,860.24 and 668,425.76

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Solution

The fourth proportional to 1,204,969.76, 1,662,860.24 and 668,425.76 is: 922,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,969.76 : 1,662,860.24 = 668,425.76 : x
  2. Step 2: Convert to fraction form
    1,204,969.76/1,662,860.24 = 668,425.76/x
  3. Step 3: Cross multiply
    1,204,969.76x = 1,662,860.24 × 668,425.76
  4. Step 4: Simplify right side
    1,204,969.76x = 1,111,498,619,695.78
  5. Step 5: Solve for x
    x = 1,111,498,619,695.78/1,204,969.76
  6. Step 6: Final answer
    x = 922,428.64

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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.