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Finding the Fourth Proportional to 564,697.28, 779,190.30 and 322,940.96

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Solution

The fourth proportional to 564,697.28, 779,190.30 and 322,940.96 is: 445,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,697.28 : 779,190.30 = 322,940.96 : x
  2. Step 2: Convert to fraction form
    564,697.28/779,190.30 = 322,940.96/x
  3. Step 3: Cross multiply
    564,697.28x = 779,190.30 × 322,940.96
  4. Step 4: Simplify right side
    564,697.28x = 251,632,463,504.69
  5. Step 5: Solve for x
    x = 251,632,463,504.69/564,697.28
  6. Step 6: Final answer
    x = 445,605.94

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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.