Home / 1,278,642.38-1,764,530.26-697,870.86

Finding the Fourth Proportional to 1,278,642.38, 1,764,530.26 and 697,870.86

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Solution

The fourth proportional to 1,278,642.38, 1,764,530.26 and 697,870.86 is: 963,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,642.38 : 1,764,530.26 = 697,870.86 : x
  2. Step 2: Convert to fraction form
    1,278,642.38/1,764,530.26 = 697,870.86/x
  3. Step 3: Cross multiply
    1,278,642.38x = 1,764,530.26 × 697,870.86
  4. Step 4: Simplify right side
    1,278,642.38x = 1,231,414,259,512.96
  5. Step 5: Solve for x
    x = 1,231,414,259,512.96/1,278,642.38
  6. Step 6: Final answer
    x = 963,063.85

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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.