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Finding the Fourth Proportional to 894.94, 1,234.75 and 615.49

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Solution

The fourth proportional to 894.94, 1,234.75 and 615.49 is: 849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.94 : 1,234.75 = 615.49 : x
  2. Step 2: Convert to fraction form
    894.94/1,234.75 = 615.49/x
  3. Step 3: Cross multiply
    894.94x = 1,234.75 × 615.49
  4. Step 4: Simplify right side
    894.94x = 759,976.28
  5. Step 5: Solve for x
    x = 759,976.28/894.94
  6. Step 6: Final answer
    x = 849.19

Related Problems

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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.