Home / 728,339.34-1,092,951.88-307,615.22

Finding the Fourth Proportional to 728,339.34, 1,092,951.88 and 307,615.22

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Solution

The fourth proportional to 728,339.34, 1,092,951.88 and 307,615.22 is: 461,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,339.34 : 1,092,951.88 = 307,615.22 : x
  2. Step 2: Convert to fraction form
    728,339.34/1,092,951.88 = 307,615.22/x
  3. Step 3: Cross multiply
    728,339.34x = 1,092,951.88 × 307,615.22
  4. Step 4: Simplify right side
    728,339.34x = 336,208,632,610.72
  5. Step 5: Solve for x
    x = 336,208,632,610.72/728,339.34
  6. Step 6: Final answer
    x = 461,609.87

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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.