Home / 1,143,867.88-1,578,608.58-660,520.36

Finding the Fourth Proportional to 1,143,867.88, 1,578,608.58 and 660,520.36

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Solution

The fourth proportional to 1,143,867.88, 1,578,608.58 and 660,520.36 is: 911,559.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,867.88 : 1,578,608.58 = 660,520.36 : x
  2. Step 2: Convert to fraction form
    1,143,867.88/1,578,608.58 = 660,520.36/x
  3. Step 3: Cross multiply
    1,143,867.88x = 1,578,608.58 × 660,520.36
  4. Step 4: Simplify right side
    1,143,867.88x = 1,042,703,107,560.69
  5. Step 5: Solve for x
    x = 1,042,703,107,560.69/1,143,867.88
  6. Step 6: Final answer
    x = 911,559.04

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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.