Home / 489,422.17-675,407.20-274,566.85

Finding the Fourth Proportional to 489,422.17, 675,407.20 and 274,566.85

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Solution

The fourth proportional to 489,422.17, 675,407.20 and 274,566.85 is: 378,904.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,422.17 : 675,407.20 = 274,566.85 : x
  2. Step 2: Convert to fraction form
    489,422.17/675,407.20 = 274,566.85/x
  3. Step 3: Cross multiply
    489,422.17x = 675,407.20 × 274,566.85
  4. Step 4: Simplify right side
    489,422.17x = 185,444,428,064.62
  5. Step 5: Solve for x
    x = 185,444,428,064.62/489,422.17
  6. Step 6: Final answer
    x = 378,904.84

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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.