Home / 1,443,908.11-1,991,967.70-870,629.80

Finding the Fourth Proportional to 1,443,908.11, 1,991,967.70 and 870,629.80

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Solution

The fourth proportional to 1,443,908.11, 1,991,967.70 and 870,629.80 is: 1,201,091.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,443,908.11 : 1,991,967.70 = 870,629.80 : x
  2. Step 2: Convert to fraction form
    1,443,908.11/1,991,967.70 = 870,629.80/x
  3. Step 3: Cross multiply
    1,443,908.11x = 1,991,967.70 × 870,629.80
  4. Step 4: Simplify right side
    1,443,908.11x = 1,734,266,430,297.62
  5. Step 5: Solve for x
    x = 1,734,266,430,297.62/1,443,908.11
  6. Step 6: Final answer
    x = 1,201,091.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.