Home / 494,412.79-682,270.70-279,557.35

Finding the Fourth Proportional to 494,412.79, 682,270.70 and 279,557.35

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Solution

The fourth proportional to 494,412.79, 682,270.70 and 279,557.35 is: 385,778.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,412.79 : 682,270.70 = 279,557.35 : x
  2. Step 2: Convert to fraction form
    494,412.79/682,270.70 = 279,557.35/x
  3. Step 3: Cross multiply
    494,412.79x = 682,270.70 × 279,557.35
  4. Step 4: Simplify right side
    494,412.79x = 190,733,788,874.65
  5. Step 5: Solve for x
    x = 190,733,788,874.65/494,412.79
  6. Step 6: Final answer
    x = 385,778.43

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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.