Home / 1,298,814.78-1,792,209.17-717,959.66

Finding the Fourth Proportional to 1,298,814.78, 1,792,209.17 and 717,959.66

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Solution

The fourth proportional to 1,298,814.78, 1,792,209.17 and 717,959.66 is: 990,698.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,814.78 : 1,792,209.17 = 717,959.66 : x
  2. Step 2: Convert to fraction form
    1,298,814.78/1,792,209.17 = 717,959.66/x
  3. Step 3: Cross multiply
    1,298,814.78x = 1,792,209.17 × 717,959.66
  4. Step 4: Simplify right side
    1,298,814.78x = 1,286,733,873,791.24
  5. Step 5: Solve for x
    x = 1,286,733,873,791.24/1,298,814.78
  6. Step 6: Final answer
    x = 990,698.51

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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.