Home / 728,442.72-1,092,810.96-307,717.92

Finding the Fourth Proportional to 728,442.72, 1,092,810.96 and 307,717.92

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Solution

The fourth proportional to 728,442.72, 1,092,810.96 and 307,717.92 is: 461,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,442.72 : 1,092,810.96 = 307,717.92 : x
  2. Step 2: Convert to fraction form
    728,442.72/1,092,810.96 = 307,717.92/x
  3. Step 3: Cross multiply
    728,442.72x = 1,092,810.96 × 307,717.92
  4. Step 4: Simplify right side
    728,442.72x = 336,277,515,564.40
  5. Step 5: Solve for x
    x = 336,277,515,564.40/728,442.72
  6. Step 6: Final answer
    x = 461,638.93

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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.