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Finding the Fourth Proportional to 490,295.21, 733,860.86 and 253,311.89

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Solution

The fourth proportional to 490,295.21, 733,860.86 and 253,311.89 is: 379,150.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,295.21 : 733,860.86 = 253,311.89 : x
  2. Step 2: Convert to fraction form
    490,295.21/733,860.86 = 253,311.89/x
  3. Step 3: Cross multiply
    490,295.21x = 733,860.86 × 253,311.89
  4. Step 4: Simplify right side
    490,295.21x = 185,895,676,507.76
  5. Step 5: Solve for x
    x = 185,895,676,507.76/490,295.21
  6. Step 6: Final answer
    x = 379,150.51

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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.