Home / 1,572,273.45-2,169,107.37-991,305.54

Finding the Fourth Proportional to 1,572,273.45, 2,169,107.37 and 991,305.54

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Solution

The fourth proportional to 1,572,273.45, 2,169,107.37 and 991,305.54 is: 1,367,604.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,572,273.45 : 2,169,107.37 = 991,305.54 : x
  2. Step 2: Convert to fraction form
    1,572,273.45/2,169,107.37 = 991,305.54/x
  3. Step 3: Cross multiply
    1,572,273.45x = 2,169,107.37 × 991,305.54
  4. Step 4: Simplify right side
    1,572,273.45x = 2,150,248,152,735.83
  5. Step 5: Solve for x
    x = 2,150,248,152,735.83/1,572,273.45
  6. Step 6: Final answer
    x = 1,367,604.44

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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.