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Finding the Fourth Proportional to 437,479, 603,983.46 and 286,838.44

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Solution

The fourth proportional to 437,479, 603,983.46 and 286,838.44 is: 396,009.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,479 : 603,983.46 = 286,838.44 : x
  2. Step 2: Convert to fraction form
    437,479/603,983.46 = 286,838.44/x
  3. Step 3: Cross multiply
    437,479x = 603,983.46 × 286,838.44
  4. Step 4: Simplify right side
    437,479x = 173,245,673,452.20
  5. Step 5: Solve for x
    x = 173,245,673,452.20/437,479
  6. Step 6: Final answer
    x = 396,009.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.