Home / 814,185.62-1,221,281.56-340,538.72

Finding the Fourth Proportional to 814,185.62, 1,221,281.56 and 340,538.72

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Solution

The fourth proportional to 814,185.62, 1,221,281.56 and 340,538.72 is: 510,809.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,185.62 : 1,221,281.56 = 340,538.72 : x
  2. Step 2: Convert to fraction form
    814,185.62/1,221,281.56 = 340,538.72/x
  3. Step 3: Cross multiply
    814,185.62x = 1,221,281.56 × 340,538.72
  4. Step 4: Simplify right side
    814,185.62x = 415,893,659,202.00
  5. Step 5: Solve for x
    x = 415,893,659,202.00/814,185.62
  6. Step 6: Final answer
    x = 510,809.39

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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.