Home / 927,021.20-1,390,531.80-394,559.60

Finding the Fourth Proportional to 927,021.20, 1,390,531.80 and 394,559.60

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Solution

The fourth proportional to 927,021.20, 1,390,531.80 and 394,559.60 is: 591,839.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,021.20 : 1,390,531.80 = 394,559.60 : x
  2. Step 2: Convert to fraction form
    927,021.20/1,390,531.80 = 394,559.60/x
  3. Step 3: Cross multiply
    927,021.20x = 1,390,531.80 × 394,559.60
  4. Step 4: Simplify right side
    927,021.20x = 548,647,670,795.28
  5. Step 5: Solve for x
    x = 548,647,670,795.28/927,021.20
  6. Step 6: Final answer
    x = 591,839.40

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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.