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Finding the Fourth Proportional to 714.74, 984.88 and 676.01

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Solution

The fourth proportional to 714.74, 984.88 and 676.01 is: 931.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    714.74 : 984.88 = 676.01 : x
  2. Step 2: Convert to fraction form
    714.74/984.88 = 676.01/x
  3. Step 3: Cross multiply
    714.74x = 984.88 × 676.01
  4. Step 4: Simplify right side
    714.74x = 665,788.73
  5. Step 5: Solve for x
    x = 665,788.73/714.74
  6. Step 6: Final answer
    x = 931.51

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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.