Home / 927,286.80-1,390,411.80-394,717.20

Finding the Fourth Proportional to 927,286.80, 1,390,411.80 and 394,717.20

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Solution

The fourth proportional to 927,286.80, 1,390,411.80 and 394,717.20 is: 591,855.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,286.80 : 1,390,411.80 = 394,717.20 : x
  2. Step 2: Convert to fraction form
    927,286.80/1,390,411.80 = 394,717.20/x
  3. Step 3: Cross multiply
    927,286.80x = 1,390,411.80 × 394,717.20
  4. Step 4: Simplify right side
    927,286.80x = 548,819,452,542.96
  5. Step 5: Solve for x
    x = 548,819,452,542.96/927,286.80
  6. Step 6: Final answer
    x = 591,855.13

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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.