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Finding the Fourth Proportional to 999,051.20, 1,498,576.80 and 694,620.80

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Solution

The fourth proportional to 999,051.20, 1,498,576.80 and 694,620.80 is: 1,041,931.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,051.20 : 1,498,576.80 = 694,620.80 : x
  2. Step 2: Convert to fraction form
    999,051.20/1,498,576.80 = 694,620.80/x
  3. Step 3: Cross multiply
    999,051.20x = 1,498,576.80 × 694,620.80
  4. Step 4: Simplify right side
    999,051.20x = 1,040,942,615,677.44
  5. Step 5: Solve for x
    x = 1,040,942,615,677.44/999,051.20
  6. Step 6: Final answer
    x = 1,041,931.20

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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.