Home / 764,732.79-1,146,428.51-291,103.11

Finding the Fourth Proportional to 764,732.79, 1,146,428.51 and 291,103.11

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Solution

The fourth proportional to 764,732.79, 1,146,428.51 and 291,103.11 is: 436,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,732.79 : 1,146,428.51 = 291,103.11 : x
  2. Step 2: Convert to fraction form
    764,732.79/1,146,428.51 = 291,103.11/x
  3. Step 3: Cross multiply
    764,732.79x = 1,146,428.51 × 291,103.11
  4. Step 4: Simplify right side
    764,732.79x = 333,728,903,198.15
  5. Step 5: Solve for x
    x = 333,728,903,198.15/764,732.79
  6. Step 6: Final answer
    x = 436,399.36

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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.