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Finding the Fourth Proportional to 404,836.87, 606,590.64 and 138,452.05

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Solution

The fourth proportional to 404,836.87, 606,590.64 and 138,452.05 is: 207,450.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,836.87 : 606,590.64 = 138,452.05 : x
  2. Step 2: Convert to fraction form
    404,836.87/606,590.64 = 138,452.05/x
  3. Step 3: Cross multiply
    404,836.87x = 606,590.64 × 138,452.05
  4. Step 4: Simplify right side
    404,836.87x = 83,983,717,618.81
  5. Step 5: Solve for x
    x = 83,983,717,618.81/404,836.87
  6. Step 6: Final answer
    x = 207,450.76

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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.