Home / 1,368,395.39-1,888,380.90-764,783.39

Finding the Fourth Proportional to 1,368,395.39, 1,888,380.90 and 764,783.39

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Solution

The fourth proportional to 1,368,395.39, 1,888,380.90 and 764,783.39 is: 1,055,398.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,395.39 : 1,888,380.90 = 764,783.39 : x
  2. Step 2: Convert to fraction form
    1,368,395.39/1,888,380.90 = 764,783.39/x
  3. Step 3: Cross multiply
    1,368,395.39x = 1,888,380.90 × 764,783.39
  4. Step 4: Simplify right side
    1,368,395.39x = 1,444,202,346,313.25
  5. Step 5: Solve for x
    x = 1,444,202,346,313.25/1,368,395.39
  6. Step 6: Final answer
    x = 1,055,398.43

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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.