Home / 1,241,621.20-1,861,994.40-442,928.80

Finding the Fourth Proportional to 1,241,621.20, 1,861,994.40 and 442,928.80

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Solution

The fourth proportional to 1,241,621.20, 1,861,994.40 and 442,928.80 is: 664,237.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,621.20 : 1,861,994.40 = 442,928.80 : x
  2. Step 2: Convert to fraction form
    1,241,621.20/1,861,994.40 = 442,928.80/x
  3. Step 3: Cross multiply
    1,241,621.20x = 1,861,994.40 × 442,928.80
  4. Step 4: Simplify right side
    1,241,621.20x = 824,730,945,198.72
  5. Step 5: Solve for x
    x = 824,730,945,198.72/1,241,621.20
  6. Step 6: Final answer
    x = 664,237.16

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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.