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Finding the Fourth Proportional to 800,442.91, 1,200,098.18 and 400,797.01

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Solution

The fourth proportional to 800,442.91, 1,200,098.18 and 400,797.01 is: 600,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,442.91 : 1,200,098.18 = 400,797.01 : x
  2. Step 2: Convert to fraction form
    800,442.91/1,200,098.18 = 400,797.01/x
  3. Step 3: Cross multiply
    800,442.91x = 1,200,098.18 × 400,797.01
  4. Step 4: Simplify right side
    800,442.91x = 480,995,760,246.46
  5. Step 5: Solve for x
    x = 480,995,760,246.46/800,442.91
  6. Step 6: Final answer
    x = 600,912.01

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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.