Home / 2,161,136.64-3,241,843.20-831,440.64

Finding the Fourth Proportional to 2,161,136.64, 3,241,843.20 and 831,440.64

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Solution

The fourth proportional to 2,161,136.64, 3,241,843.20 and 831,440.64 is: 1,247,214.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,161,136.64 : 3,241,843.20 = 831,440.64 : x
  2. Step 2: Convert to fraction form
    2,161,136.64/3,241,843.20 = 831,440.64/x
  3. Step 3: Cross multiply
    2,161,136.64x = 3,241,843.20 × 831,440.64
  4. Step 4: Simplify right side
    2,161,136.64x = 2,695,400,184,987.65
  5. Step 5: Solve for x
    x = 2,695,400,184,987.65/2,161,136.64
  6. Step 6: Final answer
    x = 1,247,214.14

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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.