Home / 489,001.10-674,821.04-274,141.22

Finding the Fourth Proportional to 489,001.10, 674,821.04 and 274,141.22

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Solution

The fourth proportional to 489,001.10, 674,821.04 and 274,141.22 is: 378,314.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,001.10 : 674,821.04 = 274,141.22 : x
  2. Step 2: Convert to fraction form
    489,001.10/674,821.04 = 274,141.22/x
  3. Step 3: Cross multiply
    489,001.10x = 674,821.04 × 274,141.22
  4. Step 4: Simplify right side
    489,001.10x = 184,996,258,442.46
  5. Step 5: Solve for x
    x = 184,996,258,442.46/489,001.10
  6. Step 6: Final answer
    x = 378,314.61

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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.