Home / 489,005.82-674,827.58-274,145.93

Finding the Fourth Proportional to 489,005.82, 674,827.58 and 274,145.93

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Solution

The fourth proportional to 489,005.82, 674,827.58 and 274,145.93 is: 378,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,005.82 : 674,827.58 = 274,145.93 : x
  2. Step 2: Convert to fraction form
    489,005.82/674,827.58 = 274,145.93/x
  3. Step 3: Cross multiply
    489,005.82x = 674,827.58 × 274,145.93
  4. Step 4: Simplify right side
    489,005.82x = 185,001,234,508.75
  5. Step 5: Solve for x
    x = 185,001,234,508.75/489,005.82
  6. Step 6: Final answer
    x = 378,321.13

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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.