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Finding the Fourth Proportional to 605,033.70, 834,327.63 and 401,013.78

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Solution

The fourth proportional to 605,033.70, 834,327.63 and 401,013.78 is: 552,988.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,033.70 : 834,327.63 = 401,013.78 : x
  2. Step 2: Convert to fraction form
    605,033.70/834,327.63 = 401,013.78/x
  3. Step 3: Cross multiply
    605,033.70x = 834,327.63 × 401,013.78
  4. Step 4: Simplify right side
    605,033.70x = 334,576,876,664.74
  5. Step 5: Solve for x
    x = 334,576,876,664.74/605,033.70
  6. Step 6: Final answer
    x = 552,988.83

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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.