Home / 1,308,393.92-1,805,318.98-764,424.64

Finding the Fourth Proportional to 1,308,393.92, 1,805,318.98 and 764,424.64

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Solution

The fourth proportional to 1,308,393.92, 1,805,318.98 and 764,424.64 is: 1,054,751.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,393.92 : 1,805,318.98 = 764,424.64 : x
  2. Step 2: Convert to fraction form
    1,308,393.92/1,805,318.98 = 764,424.64/x
  3. Step 3: Cross multiply
    1,308,393.92x = 1,805,318.98 × 764,424.64
  4. Step 4: Simplify right side
    1,308,393.92x = 1,380,030,311,371.67
  5. Step 5: Solve for x
    x = 1,380,030,311,371.67/1,308,393.92
  6. Step 6: Final answer
    x = 1,054,751.39

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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.