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Finding the Fourth Proportional to 2,666,636.97, 4,000,371 and 869,103.39

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Solution

The fourth proportional to 2,666,636.97, 4,000,371 and 869,103.39 is: 1,303,790.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666,636.97 : 4,000,371 = 869,103.39 : x
  2. Step 2: Convert to fraction form
    2,666,636.97/4,000,371 = 869,103.39/x
  3. Step 3: Cross multiply
    2,666,636.97x = 4,000,371 × 869,103.39
  4. Step 4: Simplify right side
    2,666,636.97x = 3,476,735,997,357.69
  5. Step 5: Solve for x
    x = 3,476,735,997,357.69/2,666,636.97
  6. Step 6: Final answer
    x = 1,303,790.52

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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.