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Finding the Fourth Proportional to 669.06, 921.27 and 593.29

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Solution

The fourth proportional to 669.06, 921.27 and 593.29 is: 816.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.06 : 921.27 = 593.29 : x
  2. Step 2: Convert to fraction form
    669.06/921.27 = 593.29/x
  3. Step 3: Cross multiply
    669.06x = 921.27 × 593.29
  4. Step 4: Simplify right side
    669.06x = 546,580.28
  5. Step 5: Solve for x
    x = 546,580.28/669.06
  6. Step 6: Final answer
    x = 816.94

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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.