Home / 1,340,761.90-2,011,191.45-394,228.30

Finding the Fourth Proportional to 1,340,761.90, 2,011,191.45 and 394,228.30

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Solution

The fourth proportional to 1,340,761.90, 2,011,191.45 and 394,228.30 is: 591,356.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,761.90 : 2,011,191.45 = 394,228.30 : x
  2. Step 2: Convert to fraction form
    1,340,761.90/2,011,191.45 = 394,228.30/x
  3. Step 3: Cross multiply
    1,340,761.90x = 2,011,191.45 × 394,228.30
  4. Step 4: Simplify right side
    1,340,761.90x = 792,868,586,308.04
  5. Step 5: Solve for x
    x = 792,868,586,308.04/1,340,761.90
  6. Step 6: Final answer
    x = 591,356.74

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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.