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Finding the Fourth Proportional to 501,322.22, 691,420.83 and 440,764.46

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Solution

The fourth proportional to 501,322.22, 691,420.83 and 440,764.46 is: 607,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,322.22 : 691,420.83 = 440,764.46 : x
  2. Step 2: Convert to fraction form
    501,322.22/691,420.83 = 440,764.46/x
  3. Step 3: Cross multiply
    501,322.22x = 691,420.83 × 440,764.46
  4. Step 4: Simplify right side
    501,322.22x = 304,753,728,767.70
  5. Step 5: Solve for x
    x = 304,753,728,767.70/501,322.22
  6. Step 6: Final answer
    x = 607,899.90

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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.