Home / 1,851,987.43-2,791,862.15-1,728,538.12

Finding the Fourth Proportional to 1,851,987.43, 2,791,862.15 and 1,728,538.12

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Solution

The fourth proportional to 1,851,987.43, 2,791,862.15 and 1,728,538.12 is: 2,605,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,987.43 : 2,791,862.15 = 1,728,538.12 : x
  2. Step 2: Convert to fraction form
    1,851,987.43/2,791,862.15 = 1,728,538.12/x
  3. Step 3: Cross multiply
    1,851,987.43x = 2,791,862.15 × 1,728,538.12
  4. Step 4: Simplify right side
    1,851,987.43x = 4,825,840,143,417.47
  5. Step 5: Solve for x
    x = 4,825,840,143,417.47/1,851,987.43
  6. Step 6: Final answer
    x = 2,605,762.90

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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.