Home / 494,320.90-682,136.34-279,448.15

Finding the Fourth Proportional to 494,320.90, 682,136.34 and 279,448.15

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Solution

The fourth proportional to 494,320.90, 682,136.34 and 279,448.15 is: 385,623.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,320.90 : 682,136.34 = 279,448.15 : x
  2. Step 2: Convert to fraction form
    494,320.90/682,136.34 = 279,448.15/x
  3. Step 3: Cross multiply
    494,320.90x = 682,136.34 × 279,448.15
  4. Step 4: Simplify right side
    494,320.90x = 190,621,738,260.77
  5. Step 5: Solve for x
    x = 190,621,738,260.77/494,320.90
  6. Step 6: Final answer
    x = 385,623.46

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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.