Home / 2,205,987.30-3,043,790.19-1,287,799.74

Finding the Fourth Proportional to 2,205,987.30, 3,043,790.19 and 1,287,799.74

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Solution

The fourth proportional to 2,205,987.30, 3,043,790.19 and 1,287,799.74 is: 1,776,887.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205,987.30 : 3,043,790.19 = 1,287,799.74 : x
  2. Step 2: Convert to fraction form
    2,205,987.30/3,043,790.19 = 1,287,799.74/x
  3. Step 3: Cross multiply
    2,205,987.30x = 3,043,790.19 × 1,287,799.74
  4. Step 4: Simplify right side
    2,205,987.30x = 3,919,792,215,296.55
  5. Step 5: Solve for x
    x = 3,919,792,215,296.55/2,205,987.30
  6. Step 6: Final answer
    x = 1,776,887.93

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1.5x scale

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.