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Finding the Fourth Proportional to 2,862,980, 4,294,495.92 and 868,436

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Solution

The fourth proportional to 2,862,980, 4,294,495.92 and 868,436 is: 1,302,661.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,862,980 : 4,294,495.92 = 868,436 : x
  2. Step 2: Convert to fraction form
    2,862,980/4,294,495.92 = 868,436/x
  3. Step 3: Cross multiply
    2,862,980x = 4,294,495.92 × 868,436
  4. Step 4: Simplify right side
    2,862,980x = 3,729,494,858,781.12
  5. Step 5: Solve for x
    x = 3,729,494,858,781.12/2,862,980
  6. Step 6: Final answer
    x = 1,302,661.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.