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Finding the Fourth Proportional to 608.36, 840.03 and 496.35

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Solution

The fourth proportional to 608.36, 840.03 and 496.35 is: 685.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    608.36 : 840.03 = 496.35 : x
  2. Step 2: Convert to fraction form
    608.36/840.03 = 496.35/x
  3. Step 3: Cross multiply
    608.36x = 840.03 × 496.35
  4. Step 4: Simplify right side
    608.36x = 416,948.89
  5. Step 5: Solve for x
    x = 416,948.89/608.36
  6. Step 6: Final answer
    x = 685.37

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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.