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Finding the Fourth Proportional to 703.20, 969.51 and 454.08

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Solution

The fourth proportional to 703.20, 969.51 and 454.08 is: 626.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    703.20 : 969.51 = 454.08 : x
  2. Step 2: Convert to fraction form
    703.20/969.51 = 454.08/x
  3. Step 3: Cross multiply
    703.20x = 969.51 × 454.08
  4. Step 4: Simplify right side
    703.20x = 440,235.10
  5. Step 5: Solve for x
    x = 440,235.10/703.20
  6. Step 6: Final answer
    x = 626.05

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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.