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Finding the Fourth Proportional to 552,564.62, 762,583.48 and 310,832.78

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Solution

The fourth proportional to 552,564.62, 762,583.48 and 310,832.78 is: 428,974.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,564.62 : 762,583.48 = 310,832.78 : x
  2. Step 2: Convert to fraction form
    552,564.62/762,583.48 = 310,832.78/x
  3. Step 3: Cross multiply
    552,564.62x = 762,583.48 × 310,832.78
  4. Step 4: Simplify right side
    552,564.62x = 237,035,938,480.48
  5. Step 5: Solve for x
    x = 237,035,938,480.48/552,564.62
  6. Step 6: Final answer
    x = 428,974.15

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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.