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Finding the Fourth Proportional to 894.51, 1,233 and 705.15

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Solution

The fourth proportional to 894.51, 1,233 and 705.15 is: 971.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    894.51 : 1,233 = 705.15 : x
  2. Step 2: Convert to fraction form
    894.51/1,233 = 705.15/x
  3. Step 3: Cross multiply
    894.51x = 1,233 × 705.15
  4. Step 4: Simplify right side
    894.51x = 869,449.95
  5. Step 5: Solve for x
    x = 869,449.95/894.51
  6. Step 6: Final answer
    x = 971.98

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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.