Home / 1,961,147.70-2,942,766.45-763,109.10

Finding the Fourth Proportional to 1,961,147.70, 2,942,766.45 and 763,109.10

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Solution

The fourth proportional to 1,961,147.70, 2,942,766.45 and 763,109.10 is: 1,145,070.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961,147.70 : 2,942,766.45 = 763,109.10 : x
  2. Step 2: Convert to fraction form
    1,961,147.70/2,942,766.45 = 763,109.10/x
  3. Step 3: Cross multiply
    1,961,147.70x = 2,942,766.45 × 763,109.10
  4. Step 4: Simplify right side
    1,961,147.70x = 2,245,651,857,169.70
  5. Step 5: Solve for x
    x = 2,245,651,857,169.70/1,961,147.70
  6. Step 6: Final answer
    x = 1,145,070.23

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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.