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Finding the Fourth Proportional to 894.67, 1,342.43 and 432.19

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Solution

The fourth proportional to 894.67, 1,342.43 and 432.19 is: 648.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.67 : 1,342.43 = 432.19 : x
  2. Step 2: Convert to fraction form
    894.67/1,342.43 = 432.19/x
  3. Step 3: Cross multiply
    894.67x = 1,342.43 × 432.19
  4. Step 4: Simplify right side
    894.67x = 580,187.18
  5. Step 5: Solve for x
    x = 580,187.18/894.67
  6. Step 6: Final answer
    x = 648.49

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.