Home / 494,322.90-682,139.10-279,450.15

Finding the Fourth Proportional to 494,322.90, 682,139.10 and 279,450.15

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Solution

The fourth proportional to 494,322.90, 682,139.10 and 279,450.15 is: 385,626.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,322.90 : 682,139.10 = 279,450.15 : x
  2. Step 2: Convert to fraction form
    494,322.90/682,139.10 = 279,450.15/x
  3. Step 3: Cross multiply
    494,322.90x = 682,139.10 × 279,450.15
  4. Step 4: Simplify right side
    494,322.90x = 190,623,873,815.87
  5. Step 5: Solve for x
    x = 190,623,873,815.87/494,322.90
  6. Step 6: Final answer
    x = 385,626.22

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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.