Home / 1,386,185.04-1,912,920.39-774,399.12

Finding the Fourth Proportional to 1,386,185.04, 1,912,920.39 and 774,399.12

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Solution

The fourth proportional to 1,386,185.04, 1,912,920.39 and 774,399.12 is: 1,068,662.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,185.04 : 1,912,920.39 = 774,399.12 : x
  2. Step 2: Convert to fraction form
    1,386,185.04/1,912,920.39 = 774,399.12/x
  3. Step 3: Cross multiply
    1,386,185.04x = 1,912,920.39 × 774,399.12
  4. Step 4: Simplify right side
    1,386,185.04x = 1,481,363,866,646.06
  5. Step 5: Solve for x
    x = 1,481,363,866,646.06/1,386,185.04
  6. Step 6: Final answer
    x = 1,068,662.43

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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.