Home / 765,324.32-1,147,940.00-285,459.62

Finding the Fourth Proportional to 765,324.32, 1,147,940.00 and 285,459.62

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Solution

The fourth proportional to 765,324.32, 1,147,940.00 and 285,459.62 is: 428,172.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,324.32 : 1,147,940.00 = 285,459.62 : x
  2. Step 2: Convert to fraction form
    765,324.32/1,147,940.00 = 285,459.62/x
  3. Step 3: Cross multiply
    765,324.32x = 1,147,940.00 × 285,459.62
  4. Step 4: Simplify right side
    765,324.32x = 327,690,510,086.28
  5. Step 5: Solve for x
    x = 327,690,510,086.28/765,324.32
  6. Step 6: Final answer
    x = 428,172.09

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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.