Home / 2,132,729.72-2,943,186.62-1,214,945.28

Finding the Fourth Proportional to 2,132,729.72, 2,943,186.62 and 1,214,945.28

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Solution

The fourth proportional to 2,132,729.72, 2,943,186.62 and 1,214,945.28 is: 1,676,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,132,729.72 : 2,943,186.62 = 1,214,945.28 : x
  2. Step 2: Convert to fraction form
    2,132,729.72/2,943,186.62 = 1,214,945.28/x
  3. Step 3: Cross multiply
    2,132,729.72x = 2,943,186.62 × 1,214,945.28
  4. Step 4: Simplify right side
    2,132,729.72x = 3,575,810,686,053.43
  5. Step 5: Solve for x
    x = 3,575,810,686,053.43/2,132,729.72
  6. Step 6: Final answer
    x = 1,676,635.65

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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.