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Finding the Fourth Proportional to 607.53, 838.53 and 386.44

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Solution

The fourth proportional to 607.53, 838.53 and 386.44 is: 533.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.53 : 838.53 = 386.44 : x
  2. Step 2: Convert to fraction form
    607.53/838.53 = 386.44/x
  3. Step 3: Cross multiply
    607.53x = 838.53 × 386.44
  4. Step 4: Simplify right side
    607.53x = 324,041.53
  5. Step 5: Solve for x
    x = 324,041.53/607.53
  6. Step 6: Final answer
    x = 533.38

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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.