Home / 489,022.01-674,811.61-274,132.86

Finding the Fourth Proportional to 489,022.01, 674,811.61 and 274,132.86

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Solution

The fourth proportional to 489,022.01, 674,811.61 and 274,132.86 is: 378,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,022.01 : 674,811.61 = 274,132.86 : x
  2. Step 2: Convert to fraction form
    489,022.01/674,811.61 = 274,132.86/x
  3. Step 3: Cross multiply
    489,022.01x = 674,811.61 × 274,132.86
  4. Step 4: Simplify right side
    489,022.01x = 184,988,033,394.63
  5. Step 5: Solve for x
    x = 184,988,033,394.63/489,022.01
  6. Step 6: Final answer
    x = 378,281.61

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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.