Home / 789,076.20-1,182,836.70-389,778.60

Finding the Fourth Proportional to 789,076.20, 1,182,836.70 and 389,778.60

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Solution

The fourth proportional to 789,076.20, 1,182,836.70 and 389,778.60 is: 584,283.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,076.20 : 1,182,836.70 = 389,778.60 : x
  2. Step 2: Convert to fraction form
    789,076.20/1,182,836.70 = 389,778.60/x
  3. Step 3: Cross multiply
    789,076.20x = 1,182,836.70 × 389,778.60
  4. Step 4: Simplify right side
    789,076.20x = 461,044,432,954.62
  5. Step 5: Solve for x
    x = 461,044,432,954.62/789,076.20
  6. Step 6: Final answer
    x = 584,283.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.