Home / 489,273.48-675,231.09-274,427.36

Finding the Fourth Proportional to 489,273.48, 675,231.09 and 274,427.36

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Solution

The fourth proportional to 489,273.48, 675,231.09 and 274,427.36 is: 378,728.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,273.48 : 675,231.09 = 274,427.36 : x
  2. Step 2: Convert to fraction form
    489,273.48/675,231.09 = 274,427.36/x
  3. Step 3: Cross multiply
    489,273.48x = 675,231.09 × 274,427.36
  4. Step 4: Simplify right side
    489,273.48x = 185,301,883,545.48
  5. Step 5: Solve for x
    x = 185,301,883,545.48/489,273.48
  6. Step 6: Final answer
    x = 378,728.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.