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Finding the Fourth Proportional to 606.63, 837.02 and 385.86

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Solution

The fourth proportional to 606.63, 837.02 and 385.86 is: 532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    606.63 : 837.02 = 385.86 : x
  2. Step 2: Convert to fraction form
    606.63/837.02 = 385.86/x
  3. Step 3: Cross multiply
    606.63x = 837.02 × 385.86
  4. Step 4: Simplify right side
    606.63x = 322,972.54
  5. Step 5: Solve for x
    x = 322,972.54/606.63
  6. Step 6: Final answer
    x = 532.40

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Double scale
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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.