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Finding the Fourth Proportional to 494.39, 740.26 and 436.00

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Solution

The fourth proportional to 494.39, 740.26 and 436.00 is: 652.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    494.39 : 740.26 = 436.00 : x
  2. Step 2: Convert to fraction form
    494.39/740.26 = 436.00/x
  3. Step 3: Cross multiply
    494.39x = 740.26 × 436.00
  4. Step 4: Simplify right side
    494.39x = 322,750.42
  5. Step 5: Solve for x
    x = 322,750.42/494.39
  6. Step 6: Final answer
    x = 652.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.