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Finding the Fourth Proportional to 2,621,683.08, 3,932,736.84 and 728,424.72

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Solution

The fourth proportional to 2,621,683.08, 3,932,736.84 and 728,424.72 is: 1,092,696.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,621,683.08 : 3,932,736.84 = 728,424.72 : x
  2. Step 2: Convert to fraction form
    2,621,683.08/3,932,736.84 = 728,424.72/x
  3. Step 3: Cross multiply
    2,621,683.08x = 3,932,736.84 × 728,424.72
  4. Step 4: Simplify right side
    2,621,683.08x = 2,864,702,731,510.68
  5. Step 5: Solve for x
    x = 2,864,702,731,510.68/2,621,683.08
  6. Step 6: Final answer
    x = 1,092,696.04

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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.