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Finding the Fourth Proportional to 490,096.80, 735,145.20 and 290,314.35

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Solution

The fourth proportional to 490,096.80, 735,145.20 and 290,314.35 is: 435,471.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,096.80 : 735,145.20 = 290,314.35 : x
  2. Step 2: Convert to fraction form
    490,096.80/735,145.20 = 290,314.35/x
  3. Step 3: Cross multiply
    490,096.80x = 735,145.20 × 290,314.35
  4. Step 4: Simplify right side
    490,096.80x = 213,423,200,893.62
  5. Step 5: Solve for x
    x = 213,423,200,893.62/490,096.80
  6. Step 6: Final answer
    x = 435,471.53

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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.