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Finding the Fourth Proportional to 703.53, 971.34 and 482.40

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Solution

The fourth proportional to 703.53, 971.34 and 482.40 is: 666.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.53 : 971.34 = 482.40 : x
  2. Step 2: Convert to fraction form
    703.53/971.34 = 482.40/x
  3. Step 3: Cross multiply
    703.53x = 971.34 × 482.40
  4. Step 4: Simplify right side
    703.53x = 468,574.42
  5. Step 5: Solve for x
    x = 468,574.42/703.53
  6. Step 6: Final answer
    x = 666.03

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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.