Home / 1,231,782.71-1,687,514.22-1,185,729.23

Finding the Fourth Proportional to 1,231,782.71, 1,687,514.22 and 1,185,729.23

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Solution

The fourth proportional to 1,231,782.71, 1,687,514.22 and 1,185,729.23 is: 1,624,422.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,782.71 : 1,687,514.22 = 1,185,729.23 : x
  2. Step 2: Convert to fraction form
    1,231,782.71/1,687,514.22 = 1,185,729.23/x
  3. Step 3: Cross multiply
    1,231,782.71x = 1,687,514.22 × 1,185,729.23
  4. Step 4: Simplify right side
    1,231,782.71x = 2,000,934,940,913.44
  5. Step 5: Solve for x
    x = 2,000,934,940,913.44/1,231,782.71
  6. Step 6: Final answer
    x = 1,624,422.01

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.