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Finding the Fourth Proportional to 607.15, 837.59 and 397.27

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Solution

The fourth proportional to 607.15, 837.59 and 397.27 is: 548.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.15 : 837.59 = 397.27 : x
  2. Step 2: Convert to fraction form
    607.15/837.59 = 397.27/x
  3. Step 3: Cross multiply
    607.15x = 837.59 × 397.27
  4. Step 4: Simplify right side
    607.15x = 332,749.38
  5. Step 5: Solve for x
    x = 332,749.38/607.15
  6. Step 6: Final answer
    x = 548.05

Related Problems

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Double scale
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Similar ratio
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1.5x scale

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.