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Finding the Fourth Proportional to 701.89, 968.59 and 403.18

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Solution

The fourth proportional to 701.89, 968.59 and 403.18 is: 556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.89 : 968.59 = 403.18 : x
  2. Step 2: Convert to fraction form
    701.89/968.59 = 403.18/x
  3. Step 3: Cross multiply
    701.89x = 968.59 × 403.18
  4. Step 4: Simplify right side
    701.89x = 390,516.12
  5. Step 5: Solve for x
    x = 390,516.12/701.89
  6. Step 6: Final answer
    x = 556.38

Related Problems

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Half scale
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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.