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Finding the Fourth Proportional to 607.35, 838.54 and 467.21

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Solution

The fourth proportional to 607.35, 838.54 and 467.21 is: 645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.35 : 838.54 = 467.21 : x
  2. Step 2: Convert to fraction form
    607.35/838.54 = 467.21/x
  3. Step 3: Cross multiply
    607.35x = 838.54 × 467.21
  4. Step 4: Simplify right side
    607.35x = 391,774.27
  5. Step 5: Solve for x
    x = 391,774.27/607.35
  6. Step 6: Final answer
    x = 645.06

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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.