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Finding the Fourth Proportional to 379,589.04, 523,812.42 and 209,813.04

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Solution

The fourth proportional to 379,589.04, 523,812.42 and 209,813.04 is: 289,530.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,589.04 : 523,812.42 = 209,813.04 : x
  2. Step 2: Convert to fraction form
    379,589.04/523,812.42 = 209,813.04/x
  3. Step 3: Cross multiply
    379,589.04x = 523,812.42 × 209,813.04
  4. Step 4: Simplify right side
    379,589.04x = 109,902,676,229.96
  5. Step 5: Solve for x
    x = 109,902,676,229.96/379,589.04
  6. Step 6: Final answer
    x = 289,530.69

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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.