Home / 1,376,189.65-1,899,141.81-764,399.36

Finding the Fourth Proportional to 1,376,189.65, 1,899,141.81 and 764,399.36

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Solution

The fourth proportional to 1,376,189.65, 1,899,141.81 and 764,399.36 is: 1,054,871.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,189.65 : 1,899,141.81 = 764,399.36 : x
  2. Step 2: Convert to fraction form
    1,376,189.65/1,899,141.81 = 764,399.36/x
  3. Step 3: Cross multiply
    1,376,189.65x = 1,899,141.81 × 764,399.36
  4. Step 4: Simplify right side
    1,376,189.65x = 1,451,702,790,294.35
  5. Step 5: Solve for x
    x = 1,451,702,790,294.35/1,376,189.65
  6. Step 6: Final answer
    x = 1,054,871.17

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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.