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Finding the Fourth Proportional to 713.25, 983.61 and 464.76

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Solution

The fourth proportional to 713.25, 983.61 and 464.76 is: 640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    713.25 : 983.61 = 464.76 : x
  2. Step 2: Convert to fraction form
    713.25/983.61 = 464.76/x
  3. Step 3: Cross multiply
    713.25x = 983.61 × 464.76
  4. Step 4: Simplify right side
    713.25x = 457,142.58
  5. Step 5: Solve for x
    x = 457,142.58/713.25
  6. Step 6: Final answer
    x = 640.93

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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.