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Finding the Fourth Proportional to 501,024.88, 691,412.88 and 274,670.56

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Solution

The fourth proportional to 501,024.88, 691,412.88 and 274,670.56 is: 379,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,024.88 : 691,412.88 = 274,670.56 : x
  2. Step 2: Convert to fraction form
    501,024.88/691,412.88 = 274,670.56/x
  3. Step 3: Cross multiply
    501,024.88x = 691,412.88 × 274,670.56
  4. Step 4: Simplify right side
    501,024.88x = 189,910,762,940.81
  5. Step 5: Solve for x
    x = 189,910,762,940.81/501,024.88
  6. Step 6: Final answer
    x = 379,044.58

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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.