Home / 728,942.73-1,092,386.52-344,281.54

Finding the Fourth Proportional to 728,942.73, 1,092,386.52 and 344,281.54

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Solution

The fourth proportional to 728,942.73, 1,092,386.52 and 344,281.54 is: 515,936.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,942.73 : 1,092,386.52 = 344,281.54 : x
  2. Step 2: Convert to fraction form
    728,942.73/1,092,386.52 = 344,281.54/x
  3. Step 3: Cross multiply
    728,942.73x = 1,092,386.52 × 344,281.54
  4. Step 4: Simplify right side
    728,942.73x = 376,088,513,380.84
  5. Step 5: Solve for x
    x = 376,088,513,380.84/728,942.73
  6. Step 6: Final answer
    x = 515,936.98

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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.