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Finding the Fourth Proportional to 525,469.15, 725,105.68 and 343,893.48

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Solution

The fourth proportional to 525,469.15, 725,105.68 and 343,893.48 is: 474,545.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,469.15 : 725,105.68 = 343,893.48 : x
  2. Step 2: Convert to fraction form
    525,469.15/725,105.68 = 343,893.48/x
  3. Step 3: Cross multiply
    525,469.15x = 725,105.68 × 343,893.48
  4. Step 4: Simplify right side
    525,469.15x = 249,359,115,662.97
  5. Step 5: Solve for x
    x = 249,359,115,662.97/525,469.15
  6. Step 6: Final answer
    x = 474,545.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.