Home / 990,918.83-1,367,563.97-555,410.17

Finding the Fourth Proportional to 990,918.83, 1,367,563.97 and 555,410.17

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Solution

The fourth proportional to 990,918.83, 1,367,563.97 and 555,410.17 is: 766,519.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,918.83 : 1,367,563.97 = 555,410.17 : x
  2. Step 2: Convert to fraction form
    990,918.83/1,367,563.97 = 555,410.17/x
  3. Step 3: Cross multiply
    990,918.83x = 1,367,563.97 × 555,410.17
  4. Step 4: Simplify right side
    990,918.83x = 759,558,932,469.01
  5. Step 5: Solve for x
    x = 759,558,932,469.01/990,918.83
  6. Step 6: Final answer
    x = 766,519.83

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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.