Home / 1,646,634.77-2,271,301.56-1,320,729.78

Finding the Fourth Proportional to 1,646,634.77, 2,271,301.56 and 1,320,729.78

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Solution

The fourth proportional to 1,646,634.77, 2,271,301.56 and 1,320,729.78 is: 1,821,761.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,646,634.77 : 2,271,301.56 = 1,320,729.78 : x
  2. Step 2: Convert to fraction form
    1,646,634.77/2,271,301.56 = 1,320,729.78/x
  3. Step 3: Cross multiply
    1,646,634.77x = 2,271,301.56 × 1,320,729.78
  4. Step 4: Simplify right side
    1,646,634.77x = 2,999,775,609,652.46
  5. Step 5: Solve for x
    x = 2,999,775,609,652.46/1,646,634.77
  6. Step 6: Final answer
    x = 1,821,761.37

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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.