Home / 1,106,398.92-1,661,127.12-764,039.28

Finding the Fourth Proportional to 1,106,398.92, 1,661,127.12 and 764,039.28

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Solution

The fourth proportional to 1,106,398.92, 1,661,127.12 and 764,039.28 is: 1,147,114.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,398.92 : 1,661,127.12 = 764,039.28 : x
  2. Step 2: Convert to fraction form
    1,106,398.92/1,661,127.12 = 764,039.28/x
  3. Step 3: Cross multiply
    1,106,398.92x = 1,661,127.12 × 764,039.28
  4. Step 4: Simplify right side
    1,106,398.92x = 1,269,166,368,753.27
  5. Step 5: Solve for x
    x = 1,269,166,368,753.27/1,106,398.92
  6. Step 6: Final answer
    x = 1,147,114.61

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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.