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Finding the Fourth Proportional to 954.70, 1,314.56 and 719

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Solution

The fourth proportional to 954.70, 1,314.56 and 719 is: 990.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    954.70 : 1,314.56 = 719 : x
  2. Step 2: Convert to fraction form
    954.70/1,314.56 = 719/x
  3. Step 3: Cross multiply
    954.70x = 1,314.56 × 719
  4. Step 4: Simplify right side
    954.70x = 945,168.64
  5. Step 5: Solve for x
    x = 945,168.64/954.70
  6. Step 6: Final answer
    x = 990.02

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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.