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Finding the Fourth Proportional to 1,992,347.03, 2,985,997.26 and 1,272,410.57

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Solution

The fourth proportional to 1,992,347.03, 2,985,997.26 and 1,272,410.57 is: 1,907,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,347.03 : 2,985,997.26 = 1,272,410.57 : x
  2. Step 2: Convert to fraction form
    1,992,347.03/2,985,997.26 = 1,272,410.57/x
  3. Step 3: Cross multiply
    1,992,347.03x = 2,985,997.26 × 1,272,410.57
  4. Step 4: Simplify right side
    1,992,347.03x = 3,799,414,487,851.57
  5. Step 5: Solve for x
    x = 3,799,414,487,851.57/1,992,347.03
  6. Step 6: Final answer
    x = 1,907,004.37

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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.