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Finding the Fourth Proportional to 379,752.14, 523,879.52 and 270,880.53

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Solution

The fourth proportional to 379,752.14, 523,879.52 and 270,880.53 is: 373,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,752.14 : 523,879.52 = 270,880.53 : x
  2. Step 2: Convert to fraction form
    379,752.14/523,879.52 = 270,880.53/x
  3. Step 3: Cross multiply
    379,752.14x = 523,879.52 × 270,880.53
  4. Step 4: Simplify right side
    379,752.14x = 141,908,760,679.34
  5. Step 5: Solve for x
    x = 141,908,760,679.34/379,752.14
  6. Step 6: Final answer
    x = 373,687.85

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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.