Home / 1,100,457.82-1,518,072.87-718,708.06

Finding the Fourth Proportional to 1,100,457.82, 1,518,072.87 and 718,708.06

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Solution

The fourth proportional to 1,100,457.82, 1,518,072.87 and 718,708.06 is: 991,452.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,457.82 : 1,518,072.87 = 718,708.06 : x
  2. Step 2: Convert to fraction form
    1,100,457.82/1,518,072.87 = 718,708.06/x
  3. Step 3: Cross multiply
    1,100,457.82x = 1,518,072.87 × 718,708.06
  4. Step 4: Simplify right side
    1,100,457.82x = 1,091,051,207,336.33
  5. Step 5: Solve for x
    x = 1,091,051,207,336.33/1,100,457.82
  6. Step 6: Final answer
    x = 991,452.09

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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.