Home / 1,368,396.39-1,888,382.28-764,784.39

Finding the Fourth Proportional to 1,368,396.39, 1,888,382.28 and 764,784.39

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Solution

The fourth proportional to 1,368,396.39, 1,888,382.28 and 764,784.39 is: 1,055,399.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,396.39 : 1,888,382.28 = 764,784.39 : x
  2. Step 2: Convert to fraction form
    1,368,396.39/1,888,382.28 = 764,784.39/x
  3. Step 3: Cross multiply
    1,368,396.39x = 1,888,382.28 × 764,784.39
  4. Step 4: Simplify right side
    1,368,396.39x = 1,444,205,290,096.61
  5. Step 5: Solve for x
    x = 1,444,205,290,096.61/1,368,396.39
  6. Step 6: Final answer
    x = 1,055,399.81

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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.