Home / 494,312.90-682,125.30-279,440.15

Finding the Fourth Proportional to 494,312.90, 682,125.30 and 279,440.15

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Solution

The fourth proportional to 494,312.90, 682,125.30 and 279,440.15 is: 385,612.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,312.90 : 682,125.30 = 279,440.15 : x
  2. Step 2: Convert to fraction form
    494,312.90/682,125.30 = 279,440.15/x
  3. Step 3: Cross multiply
    494,312.90x = 682,125.30 × 279,440.15
  4. Step 4: Simplify right side
    494,312.90x = 190,613,192,740.17
  5. Step 5: Solve for x
    x = 190,613,192,740.17/494,312.90
  6. Step 6: Final answer
    x = 385,612.42

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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.