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Finding the Fourth Proportional to 379,756.65, 523,885.71 and 270,885.03

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Solution

The fourth proportional to 379,756.65, 523,885.71 and 270,885.03 is: 373,694.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,756.65 : 523,885.71 = 270,885.03 : x
  2. Step 2: Convert to fraction form
    379,756.65/523,885.71 = 270,885.03/x
  3. Step 3: Cross multiply
    379,756.65x = 523,885.71 × 270,885.03
  4. Step 4: Simplify right side
    379,756.65x = 141,912,796,269.92
  5. Step 5: Solve for x
    x = 141,912,796,269.92/379,756.65
  6. Step 6: Final answer
    x = 373,694.04

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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.