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Finding the Fourth Proportional to 448,003.70, 672,005.55 and 412,234.10

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Solution

The fourth proportional to 448,003.70, 672,005.55 and 412,234.10 is: 618,351.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,003.70 : 672,005.55 = 412,234.10 : x
  2. Step 2: Convert to fraction form
    448,003.70/672,005.55 = 412,234.10/x
  3. Step 3: Cross multiply
    448,003.70x = 672,005.55 × 412,234.10
  4. Step 4: Simplify right side
    448,003.70x = 277,023,603,099.26
  5. Step 5: Solve for x
    x = 277,023,603,099.26/448,003.70
  6. Step 6: Final answer
    x = 618,351.15

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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.