Home / 861,801.58-1,189,286.04-479,918.44

Finding the Fourth Proportional to 861,801.58, 1,189,286.04 and 479,918.44

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Solution

The fourth proportional to 861,801.58, 1,189,286.04 and 479,918.44 is: 662,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,801.58 : 1,189,286.04 = 479,918.44 : x
  2. Step 2: Convert to fraction form
    861,801.58/1,189,286.04 = 479,918.44/x
  3. Step 3: Cross multiply
    861,801.58x = 1,189,286.04 × 479,918.44
  4. Step 4: Simplify right side
    861,801.58x = 570,760,301,030.58
  5. Step 5: Solve for x
    x = 570,760,301,030.58/861,801.58
  6. Step 6: Final answer
    x = 662,287.37

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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.