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Finding the Fourth Proportional to 607.36, 838.65 and 495.35

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Solution

The fourth proportional to 607.36, 838.65 and 495.35 is: 683.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.36 : 838.65 = 495.35 : x
  2. Step 2: Convert to fraction form
    607.36/838.65 = 495.35/x
  3. Step 3: Cross multiply
    607.36x = 838.65 × 495.35
  4. Step 4: Simplify right side
    607.36x = 415,425.28
  5. Step 5: Solve for x
    x = 415,425.28/607.36
  6. Step 6: Final answer
    x = 683.99

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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.