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Finding the Fourth Proportional to 492,227.70, 691,218.30 and 492,227.70

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Solution

The fourth proportional to 492,227.70, 691,218.30 and 492,227.70 is: 691,218.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,227.70 : 691,218.30 = 492,227.70 : x
  2. Step 2: Convert to fraction form
    492,227.70/691,218.30 = 492,227.70/x
  3. Step 3: Cross multiply
    492,227.70x = 691,218.30 × 492,227.70
  4. Step 4: Simplify right side
    492,227.70x = 340,236,794,006.91
  5. Step 5: Solve for x
    x = 340,236,794,006.91/492,227.70
  6. Step 6: Final answer
    x = 691,218.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.