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Finding the Fourth Proportional to 703.36, 971.06 and 493.46

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Solution

The fourth proportional to 703.36, 971.06 and 493.46 is: 681.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.36 : 971.06 = 493.46 : x
  2. Step 2: Convert to fraction form
    703.36/971.06 = 493.46/x
  3. Step 3: Cross multiply
    703.36x = 971.06 × 493.46
  4. Step 4: Simplify right side
    703.36x = 479,179.27
  5. Step 5: Solve for x
    x = 479,179.27/703.36
  6. Step 6: Final answer
    x = 681.27

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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.