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Finding the Fourth Proportional to 607.73, 911.60 and 347.55

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Solution

The fourth proportional to 607.73, 911.60 and 347.55 is: 521.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    607.73 : 911.60 = 347.55 : x
  2. Step 2: Convert to fraction form
    607.73/911.60 = 347.55/x
  3. Step 3: Cross multiply
    607.73x = 911.60 × 347.55
  4. Step 4: Simplify right side
    607.73x = 316,828.91
  5. Step 5: Solve for x
    x = 316,828.91/607.73
  6. Step 6: Final answer
    x = 521.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.