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Finding the Fourth Proportional to 863.49, 1,293.89 and 473.16

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Solution

The fourth proportional to 863.49, 1,293.89 and 473.16 is: 709.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    863.49 : 1,293.89 = 473.16 : x
  2. Step 2: Convert to fraction form
    863.49/1,293.89 = 473.16/x
  3. Step 3: Cross multiply
    863.49x = 1,293.89 × 473.16
  4. Step 4: Simplify right side
    863.49x = 612,214.63
  5. Step 5: Solve for x
    x = 612,214.63/863.49
  6. Step 6: Final answer
    x = 709.00

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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.