Home / 641,020.55-961,103.70-352,967.87

Finding the Fourth Proportional to 641,020.55, 961,103.70 and 352,967.87

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Solution

The fourth proportional to 641,020.55, 961,103.70 and 352,967.87 is: 529,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,020.55 : 961,103.70 = 352,967.87 : x
  2. Step 2: Convert to fraction form
    641,020.55/961,103.70 = 352,967.87/x
  3. Step 3: Cross multiply
    641,020.55x = 961,103.70 × 352,967.87
  4. Step 4: Simplify right side
    641,020.55x = 339,238,728,240.88
  5. Step 5: Solve for x
    x = 339,238,728,240.88/641,020.55
  6. Step 6: Final answer
    x = 529,216.62

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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.