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Finding the Fourth Proportional to 455,001.70, 682,502.55 and 448,003.30

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Solution

The fourth proportional to 455,001.70, 682,502.55 and 448,003.30 is: 672,004.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,001.70 : 682,502.55 = 448,003.30 : x
  2. Step 2: Convert to fraction form
    455,001.70/682,502.55 = 448,003.30/x
  3. Step 3: Cross multiply
    455,001.70x = 682,502.55 × 448,003.30
  4. Step 4: Simplify right side
    455,001.70x = 305,763,394,658.42
  5. Step 5: Solve for x
    x = 305,763,394,658.42/455,001.70
  6. Step 6: Final answer
    x = 672,004.95

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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.