Home / 455,044.20-682,712.10-305,453.40

Finding the Fourth Proportional to 455,044.20, 682,712.10 and 305,453.40

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Solution

The fourth proportional to 455,044.20, 682,712.10 and 305,453.40 is: 458,277.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,044.20 : 682,712.10 = 305,453.40 : x
  2. Step 2: Convert to fraction form
    455,044.20/682,712.10 = 305,453.40/x
  3. Step 3: Cross multiply
    455,044.20x = 682,712.10 × 305,453.40
  4. Step 4: Simplify right side
    455,044.20x = 208,536,732,166.14
  5. Step 5: Solve for x
    x = 208,536,732,166.14/455,044.20
  6. Step 6: Final answer
    x = 458,277.97

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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.