Home / 1,851,986.43-2,791,860.64-1,728,537.12

Finding the Fourth Proportional to 1,851,986.43, 2,791,860.64 and 1,728,537.12

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Solution

The fourth proportional to 1,851,986.43, 2,791,860.64 and 1,728,537.12 is: 2,605,761.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,986.43 : 2,791,860.64 = 1,728,537.12 : x
  2. Step 2: Convert to fraction form
    1,851,986.43/2,791,860.64 = 1,728,537.12/x
  3. Step 3: Cross multiply
    1,851,986.43x = 2,791,860.64 × 1,728,537.12
  4. Step 4: Simplify right side
    1,851,986.43x = 4,825,834,745,785.61
  5. Step 5: Solve for x
    x = 4,825,834,745,785.61/1,851,986.43
  6. Step 6: Final answer
    x = 2,605,761.40

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.