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Finding the Fourth Proportional to 490,103.80, 735,846.90 and 303,479.80

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Solution

The fourth proportional to 490,103.80, 735,846.90 and 303,479.80 is: 455,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,103.80 : 735,846.90 = 303,479.80 : x
  2. Step 2: Convert to fraction form
    490,103.80/735,846.90 = 303,479.80/x
  3. Step 3: Cross multiply
    490,103.80x = 735,846.90 × 303,479.80
  4. Step 4: Simplify right side
    490,103.80x = 223,314,670,042.62
  5. Step 5: Solve for x
    x = 223,314,670,042.62/490,103.80
  6. Step 6: Final answer
    x = 455,647.70

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1.5x scale

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.