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Finding the Fourth Proportional to 404,839.62, 606,594.76 and 138,454.80

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Solution

The fourth proportional to 404,839.62, 606,594.76 and 138,454.80 is: 207,454.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,839.62 : 606,594.76 = 138,454.80 : x
  2. Step 2: Convert to fraction form
    404,839.62/606,594.76 = 138,454.80/x
  3. Step 3: Cross multiply
    404,839.62x = 606,594.76 × 138,454.80
  4. Step 4: Simplify right side
    404,839.62x = 83,985,956,176.85
  5. Step 5: Solve for x
    x = 83,985,956,176.85/404,839.62
  6. Step 6: Final answer
    x = 207,454.88

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1.5x scale

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.