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Finding the Fourth Proportional to 623.12, 854.38 and 610.16

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Solution

The fourth proportional to 623.12, 854.38 and 610.16 is: 836.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    623.12 : 854.38 = 610.16 : x
  2. Step 2: Convert to fraction form
    623.12/854.38 = 610.16/x
  3. Step 3: Cross multiply
    623.12x = 854.38 × 610.16
  4. Step 4: Simplify right side
    623.12x = 521,308.50
  5. Step 5: Solve for x
    x = 521,308.50/623.12
  6. Step 6: Final answer
    x = 836.61

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.