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Finding the Fourth Proportional to 684.40, 942.52 and 566.92

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Solution

The fourth proportional to 684.40, 942.52 and 566.92 is: 780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    684.40 : 942.52 = 566.92 : x
  2. Step 2: Convert to fraction form
    684.40/942.52 = 566.92/x
  3. Step 3: Cross multiply
    684.40x = 942.52 × 566.92
  4. Step 4: Simplify right side
    684.40x = 534,333.44
  5. Step 5: Solve for x
    x = 534,333.44/684.40
  6. Step 6: Final answer
    x = 780.73

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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.