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Finding the Fourth Proportional to 703.16, 971.31 and 611.12

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Solution

The fourth proportional to 703.16, 971.31 and 611.12 is: 844.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.16 : 971.31 = 611.12 : x
  2. Step 2: Convert to fraction form
    703.16/971.31 = 611.12/x
  3. Step 3: Cross multiply
    703.16x = 971.31 × 611.12
  4. Step 4: Simplify right side
    703.16x = 593,582.11
  5. Step 5: Solve for x
    x = 593,582.11/703.16
  6. Step 6: Final answer
    x = 844.17

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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.