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Finding the Fourth Proportional to 448,439.60, 672,324.60 and 270,909.20

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Solution

The fourth proportional to 448,439.60, 672,324.60 and 270,909.20 is: 406,161.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,439.60 : 672,324.60 = 270,909.20 : x
  2. Step 2: Convert to fraction form
    448,439.60/672,324.60 = 270,909.20/x
  3. Step 3: Cross multiply
    448,439.60x = 672,324.60 × 270,909.20
  4. Step 4: Simplify right side
    448,439.60x = 182,138,919,526.32
  5. Step 5: Solve for x
    x = 182,138,919,526.32/448,439.60
  6. Step 6: Final answer
    x = 406,161.54

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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.