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Finding the Fourth Proportional to 351,324.69, 485,107.57 and 324,457.39

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Solution

The fourth proportional to 351,324.69, 485,107.57 and 324,457.39 is: 448,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,324.69 : 485,107.57 = 324,457.39 : x
  2. Step 2: Convert to fraction form
    351,324.69/485,107.57 = 324,457.39/x
  3. Step 3: Cross multiply
    351,324.69x = 485,107.57 × 324,457.39
  4. Step 4: Simplify right side
    351,324.69x = 157,396,737,043.40
  5. Step 5: Solve for x
    x = 157,396,737,043.40/351,324.69
  6. Step 6: Final answer
    x = 448,009.33

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1.5x scale

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.