Home / 1,340,772.90-2,011,207.95-394,239.30

Finding the Fourth Proportional to 1,340,772.90, 2,011,207.95 and 394,239.30

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Solution

The fourth proportional to 1,340,772.90, 2,011,207.95 and 394,239.30 is: 591,373.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,772.90 : 2,011,207.95 = 394,239.30 : x
  2. Step 2: Convert to fraction form
    1,340,772.90/2,011,207.95 = 394,239.30/x
  3. Step 3: Cross multiply
    1,340,772.90x = 2,011,207.95 × 394,239.30
  4. Step 4: Simplify right side
    1,340,772.90x = 792,897,214,362.44
  5. Step 5: Solve for x
    x = 792,897,214,362.44/1,340,772.90
  6. Step 6: Final answer
    x = 591,373.24

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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.