Home / 1,308,395.92-1,805,321.74-764,426.64

Finding the Fourth Proportional to 1,308,395.92, 1,805,321.74 and 764,426.64

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Solution

The fourth proportional to 1,308,395.92, 1,805,321.74 and 764,426.64 is: 1,054,754.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,395.92 : 1,805,321.74 = 764,426.64 : x
  2. Step 2: Convert to fraction form
    1,308,395.92/1,805,321.74 = 764,426.64/x
  3. Step 3: Cross multiply
    1,308,395.92x = 1,805,321.74 × 764,426.64
  4. Step 4: Simplify right side
    1,308,395.92x = 1,380,036,031,827.15
  5. Step 5: Solve for x
    x = 1,380,036,031,827.15/1,308,395.92
  6. Step 6: Final answer
    x = 1,054,754.15

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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.