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Finding the Fourth Proportional to 439,577.20, 659,365.80 and 297,859.60

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Solution

The fourth proportional to 439,577.20, 659,365.80 and 297,859.60 is: 446,789.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,577.20 : 659,365.80 = 297,859.60 : x
  2. Step 2: Convert to fraction form
    439,577.20/659,365.80 = 297,859.60/x
  3. Step 3: Cross multiply
    439,577.20x = 659,365.80 × 297,859.60
  4. Step 4: Simplify right side
    439,577.20x = 196,398,433,441.68
  5. Step 5: Solve for x
    x = 196,398,433,441.68/439,577.20
  6. Step 6: Final answer
    x = 446,789.40

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Similar ratio
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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.