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Finding the Fourth Proportional to 448,078.10, 672,117.15 and 413,863.70

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Solution

The fourth proportional to 448,078.10, 672,117.15 and 413,863.70 is: 620,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,078.10 : 672,117.15 = 413,863.70 : x
  2. Step 2: Convert to fraction form
    448,078.10/672,117.15 = 413,863.70/x
  3. Step 3: Cross multiply
    448,078.10x = 672,117.15 × 413,863.70
  4. Step 4: Simplify right side
    448,078.10x = 278,164,890,532.46
  5. Step 5: Solve for x
    x = 278,164,890,532.46/448,078.10
  6. Step 6: Final answer
    x = 620,795.55

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Similar ratio
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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.