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Finding the Fourth Proportional to 379,553.30, 523,794.69 and 207,480.77

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Solution

The fourth proportional to 379,553.30, 523,794.69 and 207,480.77 is: 286,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,553.30 : 523,794.69 = 207,480.77 : x
  2. Step 2: Convert to fraction form
    379,553.30/523,794.69 = 207,480.77/x
  3. Step 3: Cross multiply
    379,553.30x = 523,794.69 × 207,480.77
  4. Step 4: Simplify right side
    379,553.30x = 108,677,325,603.11
  5. Step 5: Solve for x
    x = 108,677,325,603.11/379,553.30
  6. Step 6: Final answer
    x = 286,329.55

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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.