Home / 1,309,340.79-1,806,619.37-765,371.43

Finding the Fourth Proportional to 1,309,340.79, 1,806,619.37 and 765,371.43

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Solution

The fourth proportional to 1,309,340.79, 1,806,619.37 and 765,371.43 is: 1,056,054.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,340.79 : 1,806,619.37 = 765,371.43 : x
  2. Step 2: Convert to fraction form
    1,309,340.79/1,806,619.37 = 765,371.43/x
  3. Step 3: Cross multiply
    1,309,340.79x = 1,806,619.37 × 765,371.43
  4. Step 4: Simplify right side
    1,309,340.79x = 1,382,734,846,855.74
  5. Step 5: Solve for x
    x = 1,382,734,846,855.74/1,309,340.79
  6. Step 6: Final answer
    x = 1,056,054.20

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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.