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Finding the Fourth Proportional to 668.76, 924.93 and 575.61

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Solution

The fourth proportional to 668.76, 924.93 and 575.61 is: 796.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    668.76 : 924.93 = 575.61 : x
  2. Step 2: Convert to fraction form
    668.76/924.93 = 575.61/x
  3. Step 3: Cross multiply
    668.76x = 924.93 × 575.61
  4. Step 4: Simplify right side
    668.76x = 532,398.96
  5. Step 5: Solve for x
    x = 532,398.96/668.76
  6. Step 6: Final answer
    x = 796.10

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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.