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Finding the Fourth Proportional to 714.51, 984.48 and 481.23

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Solution

The fourth proportional to 714.51, 984.48 and 481.23 is: 663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.51 : 984.48 = 481.23 : x
  2. Step 2: Convert to fraction form
    714.51/984.48 = 481.23/x
  3. Step 3: Cross multiply
    714.51x = 984.48 × 481.23
  4. Step 4: Simplify right side
    714.51x = 473,761.31
  5. Step 5: Solve for x
    x = 473,761.31/714.51
  6. Step 6: Final answer
    x = 663.06

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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.