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Finding the Fourth Proportional to 404,617.60, 606,926.40 and 255,026.80

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Solution

The fourth proportional to 404,617.60, 606,926.40 and 255,026.80 is: 382,540.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,617.60 : 606,926.40 = 255,026.80 : x
  2. Step 2: Convert to fraction form
    404,617.60/606,926.40 = 255,026.80/x
  3. Step 3: Cross multiply
    404,617.60x = 606,926.40 × 255,026.80
  4. Step 4: Simplify right side
    404,617.60x = 154,782,497,627.52
  5. Step 5: Solve for x
    x = 154,782,497,627.52/404,617.60
  6. Step 6: Final answer
    x = 382,540.20

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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.