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Finding the Fourth Proportional to 703.98, 970.58 and 482.55

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Solution

The fourth proportional to 703.98, 970.58 and 482.55 is: 665.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.98 : 970.58 = 482.55 : x
  2. Step 2: Convert to fraction form
    703.98/970.58 = 482.55/x
  3. Step 3: Cross multiply
    703.98x = 970.58 × 482.55
  4. Step 4: Simplify right side
    703.98x = 468,350.97
  5. Step 5: Solve for x
    x = 468,350.97/703.98
  6. Step 6: Final answer
    x = 665.29

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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.