Home / 526,701.96-787,974.26-405,843.30

Finding the Fourth Proportional to 526,701.96, 787,974.26 and 405,843.30

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Solution

The fourth proportional to 526,701.96, 787,974.26 and 405,843.30 is: 607,163.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,701.96 : 787,974.26 = 405,843.30 : x
  2. Step 2: Convert to fraction form
    526,701.96/787,974.26 = 405,843.30/x
  3. Step 3: Cross multiply
    526,701.96x = 787,974.26 × 405,843.30
  4. Step 4: Simplify right side
    526,701.96x = 319,794,071,964.24
  5. Step 5: Solve for x
    x = 319,794,071,964.24/526,701.96
  6. Step 6: Final answer
    x = 607,163.25

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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.