Home / 1,308,357.66-1,805,268.93-764,388.39

Finding the Fourth Proportional to 1,308,357.66, 1,805,268.93 and 764,388.39

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Solution

The fourth proportional to 1,308,357.66, 1,805,268.93 and 764,388.39 is: 1,054,701.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,357.66 : 1,805,268.93 = 764,388.39 : x
  2. Step 2: Convert to fraction form
    1,308,357.66/1,805,268.93 = 764,388.39/x
  3. Step 3: Cross multiply
    1,308,357.66x = 1,805,268.93 × 764,388.39
  4. Step 4: Simplify right side
    1,308,357.66x = 1,379,926,610,919.72
  5. Step 5: Solve for x
    x = 1,379,926,610,919.72/1,308,357.66
  6. Step 6: Final answer
    x = 1,054,701.37

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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.