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Finding the Fourth Proportional to 607.41, 837.86 and 386.17

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Solution

The fourth proportional to 607.41, 837.86 and 386.17 is: 532.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.41 : 837.86 = 386.17 : x
  2. Step 2: Convert to fraction form
    607.41/837.86 = 386.17/x
  3. Step 3: Cross multiply
    607.41x = 837.86 × 386.17
  4. Step 4: Simplify right side
    607.41x = 323,557.53
  5. Step 5: Solve for x
    x = 323,557.53/607.41
  6. Step 6: Final answer
    x = 532.69

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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.