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Finding the Fourth Proportional to 2,738,393.20, 4,107,978.60 and 844,937.20

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Solution

The fourth proportional to 2,738,393.20, 4,107,978.60 and 844,937.20 is: 1,267,525.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,738,393.20 : 4,107,978.60 = 844,937.20 : x
  2. Step 2: Convert to fraction form
    2,738,393.20/4,107,978.60 = 844,937.20/x
  3. Step 3: Cross multiply
    2,738,393.20x = 4,107,978.60 × 844,937.20
  4. Step 4: Simplify right side
    2,738,393.20x = 3,470,983,935,943.92
  5. Step 5: Solve for x
    x = 3,470,983,935,943.92/2,738,393.20
  6. Step 6: Final answer
    x = 1,267,525.77

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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.