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Finding the Fourth Proportional to 440,414.40, 607,730.40 and 304,593.60

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Solution

The fourth proportional to 440,414.40, 607,730.40 and 304,593.60 is: 420,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,414.40 : 607,730.40 = 304,593.60 : x
  2. Step 2: Convert to fraction form
    440,414.40/607,730.40 = 304,593.60/x
  3. Step 3: Cross multiply
    440,414.40x = 607,730.40 × 304,593.60
  4. Step 4: Simplify right side
    440,414.40x = 185,110,790,365.44
  5. Step 5: Solve for x
    x = 185,110,790,365.44/440,414.40
  6. Step 6: Final answer
    x = 420,310.49

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1.5x scale

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.