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Finding the Fourth Proportional to 448,077.60, 672,116.40 and 413,863.20

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Solution

The fourth proportional to 448,077.60, 672,116.40 and 413,863.20 is: 620,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,077.60 : 672,116.40 = 413,863.20 : x
  2. Step 2: Convert to fraction form
    448,077.60/672,116.40 = 413,863.20/x
  3. Step 3: Cross multiply
    448,077.60x = 672,116.40 × 413,863.20
  4. Step 4: Simplify right side
    448,077.60x = 278,164,244,076.48
  5. Step 5: Solve for x
    x = 278,164,244,076.48/448,077.60
  6. Step 6: Final answer
    x = 620,794.80

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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.