Home / 1,659,142.80-2,289,686.40-933,991.92

Finding the Fourth Proportional to 1,659,142.80, 2,289,686.40 and 933,991.92

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Solution

The fourth proportional to 1,659,142.80, 2,289,686.40 and 933,991.92 is: 1,288,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,659,142.80 : 2,289,686.40 = 933,991.92 : x
  2. Step 2: Convert to fraction form
    1,659,142.80/2,289,686.40 = 933,991.92/x
  3. Step 3: Cross multiply
    1,659,142.80x = 2,289,686.40 × 933,991.92
  4. Step 4: Simplify right side
    1,659,142.80x = 2,138,548,596,933.89
  5. Step 5: Solve for x
    x = 2,138,548,596,933.89/1,659,142.80
  6. Step 6: Final answer
    x = 1,288,947.88

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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.