Home / 2,071,785.30-2,859,504.75-1,392,328.14

Finding the Fourth Proportional to 2,071,785.30, 2,859,504.75 and 1,392,328.14

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Solution

The fourth proportional to 2,071,785.30, 2,859,504.75 and 1,392,328.14 is: 1,921,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071,785.30 : 2,859,504.75 = 1,392,328.14 : x
  2. Step 2: Convert to fraction form
    2,071,785.30/2,859,504.75 = 1,392,328.14/x
  3. Step 3: Cross multiply
    2,071,785.30x = 2,859,504.75 × 1,392,328.14
  4. Step 4: Simplify right side
    2,071,785.30x = 3,981,368,929,888.66
  5. Step 5: Solve for x
    x = 3,981,368,929,888.66/2,071,785.30
  6. Step 6: Final answer
    x = 1,921,709.23

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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.