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Finding the Fourth Proportional to 379,630, 523,843.92 and 209,841.04

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Solution

The fourth proportional to 379,630, 523,843.92 and 209,841.04 is: 289,555.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,630 : 523,843.92 = 209,841.04 : x
  2. Step 2: Convert to fraction form
    379,630/523,843.92 = 209,841.04/x
  3. Step 3: Cross multiply
    379,630x = 523,843.92 × 209,841.04
  4. Step 4: Simplify right side
    379,630x = 109,923,952,970.48
  5. Step 5: Solve for x
    x = 109,923,952,970.48/379,630
  6. Step 6: Final answer
    x = 289,555.50

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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.