Home / 811,519.97-1,217,042.01-305,716.01

Finding the Fourth Proportional to 811,519.97, 1,217,042.01 and 305,716.01

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Solution

The fourth proportional to 811,519.97, 1,217,042.01 and 305,716.01 is: 458,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,519.97 : 1,217,042.01 = 305,716.01 : x
  2. Step 2: Convert to fraction form
    811,519.97/1,217,042.01 = 305,716.01/x
  3. Step 3: Cross multiply
    811,519.97x = 1,217,042.01 × 305,716.01
  4. Step 4: Simplify right side
    811,519.97x = 372,069,221,214.37
  5. Step 5: Solve for x
    x = 372,069,221,214.37/811,519.97
  6. Step 6: Final answer
    x = 458,484.37

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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.