Home / 927,270.80-1,389,869.40-394,701.20

Finding the Fourth Proportional to 927,270.80, 1,389,869.40 and 394,701.20

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Solution

The fourth proportional to 927,270.80, 1,389,869.40 and 394,701.20 is: 591,610.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,270.80 : 1,389,869.40 = 394,701.20 : x
  2. Step 2: Convert to fraction form
    927,270.80/1,389,869.40 = 394,701.20/x
  3. Step 3: Cross multiply
    927,270.80x = 1,389,869.40 × 394,701.20
  4. Step 4: Simplify right side
    927,270.80x = 548,583,120,023.28
  5. Step 5: Solve for x
    x = 548,583,120,023.28/927,270.80
  6. Step 6: Final answer
    x = 591,610.48

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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.