Home / 2,225,378.30-3,071,022.88-1,206,782.78

Finding the Fourth Proportional to 2,225,378.30, 3,071,022.88 and 1,206,782.78

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Solution

The fourth proportional to 2,225,378.30, 3,071,022.88 and 1,206,782.78 is: 1,665,360.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,225,378.30 : 3,071,022.88 = 1,206,782.78 : x
  2. Step 2: Convert to fraction form
    2,225,378.30/3,071,022.88 = 1,206,782.78/x
  3. Step 3: Cross multiply
    2,225,378.30x = 3,071,022.88 × 1,206,782.78
  4. Step 4: Simplify right side
    2,225,378.30x = 3,706,057,528,570.01
  5. Step 5: Solve for x
    x = 3,706,057,528,570.01/2,225,378.30
  6. Step 6: Final answer
    x = 1,665,360.68

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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.