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Finding the Fourth Proportional to 494,622.76, 682,594.86 and 279,758.62

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Solution

The fourth proportional to 494,622.76, 682,594.86 and 279,758.62 is: 386,075.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,622.76 : 682,594.86 = 279,758.62 : x
  2. Step 2: Convert to fraction form
    494,622.76/682,594.86 = 279,758.62/x
  3. Step 3: Cross multiply
    494,622.76x = 682,594.86 × 279,758.62
  4. Step 4: Simplify right side
    494,622.76x = 190,961,796,052.69
  5. Step 5: Solve for x
    x = 190,961,796,052.69/494,622.76
  6. Step 6: Final answer
    x = 386,075.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.