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Finding the Fourth Proportional to 550,812.87, 825,554.97 and 284,428.17

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Solution

The fourth proportional to 550,812.87, 825,554.97 and 284,428.17 is: 426,299.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,812.87 : 825,554.97 = 284,428.17 : x
  2. Step 2: Convert to fraction form
    550,812.87/825,554.97 = 284,428.17/x
  3. Step 3: Cross multiply
    550,812.87x = 825,554.97 × 284,428.17
  4. Step 4: Simplify right side
    550,812.87x = 234,811,089,351.51
  5. Step 5: Solve for x
    x = 234,811,089,351.51/550,812.87
  6. Step 6: Final answer
    x = 426,299.21

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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.