Home / 1,391,510.36-2,084,869.08-1,087,786.34

Finding the Fourth Proportional to 1,391,510.36, 2,084,869.08 and 1,087,786.34

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Solution

The fourth proportional to 1,391,510.36, 2,084,869.08 and 1,087,786.34 is: 1,629,806.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,510.36 : 2,084,869.08 = 1,087,786.34 : x
  2. Step 2: Convert to fraction form
    1,391,510.36/2,084,869.08 = 1,087,786.34/x
  3. Step 3: Cross multiply
    1,391,510.36x = 2,084,869.08 × 1,087,786.34
  4. Step 4: Simplify right side
    1,391,510.36x = 2,267,892,105,912.37
  5. Step 5: Solve for x
    x = 2,267,892,105,912.37/1,391,510.36
  6. Step 6: Final answer
    x = 1,629,806.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.