Home / 494,353.17-682,212.75-290,412.69

Finding the Fourth Proportional to 494,353.17, 682,212.75 and 290,412.69

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Solution

The fourth proportional to 494,353.17, 682,212.75 and 290,412.69 is: 400,772.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,353.17 : 682,212.75 = 290,412.69 : x
  2. Step 2: Convert to fraction form
    494,353.17/682,212.75 = 290,412.69/x
  3. Step 3: Cross multiply
    494,353.17x = 682,212.75 × 290,412.69
  4. Step 4: Simplify right side
    494,353.17x = 198,123,236,232.45
  5. Step 5: Solve for x
    x = 198,123,236,232.45/494,353.17
  6. Step 6: Final answer
    x = 400,772.66

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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.