Home / 1,215,262.20-1,821,726.90-945,240.60

Finding the Fourth Proportional to 1,215,262.20, 1,821,726.90 and 945,240.60

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Solution

The fourth proportional to 1,215,262.20, 1,821,726.90 and 945,240.60 is: 1,416,953.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,262.20 : 1,821,726.90 = 945,240.60 : x
  2. Step 2: Convert to fraction form
    1,215,262.20/1,821,726.90 = 945,240.60/x
  3. Step 3: Cross multiply
    1,215,262.20x = 1,821,726.90 × 945,240.60
  4. Step 4: Simplify right side
    1,215,262.20x = 1,721,970,227,992.14
  5. Step 5: Solve for x
    x = 1,721,970,227,992.14/1,215,262.20
  6. Step 6: Final answer
    x = 1,416,953.66

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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.