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Finding the Fourth Proportional to 379,552.30, 523,793.31 and 207,479.77

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Solution

The fourth proportional to 379,552.30, 523,793.31 and 207,479.77 is: 286,328.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,552.30 : 523,793.31 = 207,479.77 : x
  2. Step 2: Convert to fraction form
    379,552.30/523,793.31 = 207,479.77/x
  3. Step 3: Cross multiply
    379,552.30x = 523,793.31 × 207,479.77
  4. Step 4: Simplify right side
    379,552.30x = 108,676,515,486.34
  5. Step 5: Solve for x
    x = 108,676,515,486.34/379,552.30
  6. Step 6: Final answer
    x = 286,328.17

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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.