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Finding the Fourth Proportional to 608.37, 838.56 and 556.10

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Solution

The fourth proportional to 608.37, 838.56 and 556.10 is: 766.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.37 : 838.56 = 556.10 : x
  2. Step 2: Convert to fraction form
    608.37/838.56 = 556.10/x
  3. Step 3: Cross multiply
    608.37x = 838.56 × 556.10
  4. Step 4: Simplify right side
    608.37x = 466,319.02
  5. Step 5: Solve for x
    x = 466,319.02/608.37
  6. Step 6: Final answer
    x = 766.51

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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.