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Finding the Fourth Proportional to 607.77, 838.48 and 374.49

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Solution

The fourth proportional to 607.77, 838.48 and 374.49 is: 516.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.77 : 838.48 = 374.49 : x
  2. Step 2: Convert to fraction form
    607.77/838.48 = 374.49/x
  3. Step 3: Cross multiply
    607.77x = 838.48 × 374.49
  4. Step 4: Simplify right side
    607.77x = 314,002.38
  5. Step 5: Solve for x
    x = 314,002.38/607.77
  6. Step 6: Final answer
    x = 516.65

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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.