Home / 1,099,621.92-1,646,632.80-724,507.68

Finding the Fourth Proportional to 1,099,621.92, 1,646,632.80 and 724,507.68

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Solution

The fourth proportional to 1,099,621.92, 1,646,632.80 and 724,507.68 is: 1,084,916.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,621.92 : 1,646,632.80 = 724,507.68 : x
  2. Step 2: Convert to fraction form
    1,099,621.92/1,646,632.80 = 724,507.68/x
  3. Step 3: Cross multiply
    1,099,621.92x = 1,646,632.80 × 724,507.68
  4. Step 4: Simplify right side
    1,099,621.92x = 1,192,998,109,739.90
  5. Step 5: Solve for x
    x = 1,192,998,109,739.90/1,099,621.92
  6. Step 6: Final answer
    x = 1,084,916.63

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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.