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Finding the Fourth Proportional to 501,427.76, 691,970.44 and 275,073.24

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Solution

The fourth proportional to 501,427.76, 691,970.44 and 275,073.24 is: 379,601.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,427.76 : 691,970.44 = 275,073.24 : x
  2. Step 2: Convert to fraction form
    501,427.76/691,970.44 = 275,073.24/x
  3. Step 3: Cross multiply
    501,427.76x = 691,970.44 × 275,073.24
  4. Step 4: Simplify right side
    501,427.76x = 190,342,550,915.03
  5. Step 5: Solve for x
    x = 190,342,550,915.03/501,427.76
  6. Step 6: Final answer
    x = 379,601.14

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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.