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Finding the Fourth Proportional to 490,855.80, 736,974.90 and 304,231.80

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Solution

The fourth proportional to 490,855.80, 736,974.90 and 304,231.80 is: 456,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,855.80 : 736,974.90 = 304,231.80 : x
  2. Step 2: Convert to fraction form
    490,855.80/736,974.90 = 304,231.80/x
  3. Step 3: Cross multiply
    490,855.80x = 736,974.90 × 304,231.80
  4. Step 4: Simplify right side
    490,855.80x = 224,211,200,381.82
  5. Step 5: Solve for x
    x = 224,211,200,381.82/490,855.80
  6. Step 6: Final answer
    x = 456,776.10

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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.