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Finding the Fourth Proportional to 1,220,294, 1,684,006.20 and 743,366

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Solution

The fourth proportional to 1,220,294, 1,684,006.20 and 743,366 is: 1,025,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,294 : 1,684,006.20 = 743,366 : x
  2. Step 2: Convert to fraction form
    1,220,294/1,684,006.20 = 743,366/x
  3. Step 3: Cross multiply
    1,220,294x = 1,684,006.20 × 743,366
  4. Step 4: Simplify right side
    1,220,294x = 1,251,832,952,869.20
  5. Step 5: Solve for x
    x = 1,251,832,952,869.20/1,220,294
  6. Step 6: Final answer
    x = 1,025,845.37

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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.