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Finding the Fourth Proportional to 674.93, 928.47 and 550.32

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Solution

The fourth proportional to 674.93, 928.47 and 550.32 is: 757.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    674.93 : 928.47 = 550.32 : x
  2. Step 2: Convert to fraction form
    674.93/928.47 = 550.32/x
  3. Step 3: Cross multiply
    674.93x = 928.47 × 550.32
  4. Step 4: Simplify right side
    674.93x = 510,954.19
  5. Step 5: Solve for x
    x = 510,954.19/674.93
  6. Step 6: Final answer
    x = 757.05

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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.