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Finding the Fourth Proportional to 492,857.04, 680,141.76 and 277,996.56

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Solution

The fourth proportional to 492,857.04, 680,141.76 and 277,996.56 is: 383,634.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,857.04 : 680,141.76 = 277,996.56 : x
  2. Step 2: Convert to fraction form
    492,857.04/680,141.76 = 277,996.56/x
  3. Step 3: Cross multiply
    492,857.04x = 680,141.76 × 277,996.56
  4. Step 4: Simplify right side
    492,857.04x = 189,077,069,592.35
  5. Step 5: Solve for x
    x = 189,077,069,592.35/492,857.04
  6. Step 6: Final answer
    x = 383,634.71

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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.