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Finding the Fourth Proportional to 713.19, 983.17 and 464.42

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Solution

The fourth proportional to 713.19, 983.17 and 464.42 is: 640.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.19 : 983.17 = 464.42 : x
  2. Step 2: Convert to fraction form
    713.19/983.17 = 464.42/x
  3. Step 3: Cross multiply
    713.19x = 983.17 × 464.42
  4. Step 4: Simplify right side
    713.19x = 456,603.81
  5. Step 5: Solve for x
    x = 456,603.81/713.19
  6. Step 6: Final answer
    x = 640.23

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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.