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Finding the Fourth Proportional to 703.45, 970.53 and 454.85

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Solution

The fourth proportional to 703.45, 970.53 and 454.85 is: 627.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.45 : 970.53 = 454.85 : x
  2. Step 2: Convert to fraction form
    703.45/970.53 = 454.85/x
  3. Step 3: Cross multiply
    703.45x = 970.53 × 454.85
  4. Step 4: Simplify right side
    703.45x = 441,440.72
  5. Step 5: Solve for x
    x = 441,440.72/703.45
  6. Step 6: Final answer
    x = 627.54

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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.