Home / 990,860.72-1,367,365.39-577,371.92

Finding the Fourth Proportional to 990,860.72, 1,367,365.39 and 577,371.92

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Solution

The fourth proportional to 990,860.72, 1,367,365.39 and 577,371.92 is: 796,760.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,860.72 : 1,367,365.39 = 577,371.92 : x
  2. Step 2: Convert to fraction form
    990,860.72/1,367,365.39 = 577,371.92/x
  3. Step 3: Cross multiply
    990,860.72x = 1,367,365.39 × 577,371.92
  4. Step 4: Simplify right side
    990,860.72x = 789,478,380,565.85
  5. Step 5: Solve for x
    x = 789,478,380,565.85/990,860.72
  6. Step 6: Final answer
    x = 796,760.20

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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.