Home / 2,991,947.60-4,487,921.40-1,729,125.20

Finding the Fourth Proportional to 2,991,947.60, 4,487,921.40 and 1,729,125.20

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Solution

The fourth proportional to 2,991,947.60, 4,487,921.40 and 1,729,125.20 is: 2,593,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,947.60 : 4,487,921.40 = 1,729,125.20 : x
  2. Step 2: Convert to fraction form
    2,991,947.60/4,487,921.40 = 1,729,125.20/x
  3. Step 3: Cross multiply
    2,991,947.60x = 4,487,921.40 × 1,729,125.20
  4. Step 4: Simplify right side
    2,991,947.60x = 7,760,177,988,359.28
  5. Step 5: Solve for x
    x = 7,760,177,988,359.28/2,991,947.60
  6. Step 6: Final answer
    x = 2,593,687.80

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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.