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Finding the Fourth Proportional to 501,372, 691,893.36 and 275,018.04

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Solution

The fourth proportional to 501,372, 691,893.36 and 275,018.04 is: 379,524.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,372 : 691,893.36 = 275,018.04 : x
  2. Step 2: Convert to fraction form
    501,372/691,893.36 = 275,018.04/x
  3. Step 3: Cross multiply
    501,372x = 691,893.36 × 275,018.04
  4. Step 4: Simplify right side
    501,372x = 190,283,155,756.21
  5. Step 5: Solve for x
    x = 190,283,155,756.21/501,372
  6. Step 6: Final answer
    x = 379,524.90

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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.