Home / 1,851,965.22-2,791,828.65-1,728,515.91

Finding the Fourth Proportional to 1,851,965.22, 2,791,828.65 and 1,728,515.91

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Solution

The fourth proportional to 1,851,965.22, 2,791,828.65 and 1,728,515.91 is: 2,605,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,965.22 : 2,791,828.65 = 1,728,515.91 : x
  2. Step 2: Convert to fraction form
    1,851,965.22/2,791,828.65 = 1,728,515.91/x
  3. Step 3: Cross multiply
    1,851,965.22x = 2,791,828.65 × 1,728,515.91
  4. Step 4: Simplify right side
    1,851,965.22x = 4,825,720,239,518.82
  5. Step 5: Solve for x
    x = 4,825,720,239,518.82/1,851,965.22
  6. Step 6: Final answer
    x = 2,605,729.41

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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.