Home / 764,578.08-1,146,424.32-258,969.60

Finding the Fourth Proportional to 764,578.08, 1,146,424.32 and 258,969.60

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Solution

The fourth proportional to 764,578.08, 1,146,424.32 and 258,969.60 is: 388,304.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,578.08 : 1,146,424.32 = 258,969.60 : x
  2. Step 2: Convert to fraction form
    764,578.08/1,146,424.32 = 258,969.60/x
  3. Step 3: Cross multiply
    764,578.08x = 1,146,424.32 × 258,969.60
  4. Step 4: Simplify right side
    764,578.08x = 296,889,047,580.67
  5. Step 5: Solve for x
    x = 296,889,047,580.67/764,578.08
  6. Step 6: Final answer
    x = 388,304.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.