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Finding the Fourth Proportional to 490,874.40, 736,311.60 and 254,678.40

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Solution

The fourth proportional to 490,874.40, 736,311.60 and 254,678.40 is: 382,017.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,874.40 : 736,311.60 = 254,678.40 : x
  2. Step 2: Convert to fraction form
    490,874.40/736,311.60 = 254,678.40/x
  3. Step 3: Cross multiply
    490,874.40x = 736,311.60 × 254,678.40
  4. Step 4: Simplify right side
    490,874.40x = 187,522,660,189.44
  5. Step 5: Solve for x
    x = 187,522,660,189.44/490,874.40
  6. Step 6: Final answer
    x = 382,017.60

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Similar ratio
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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.