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Finding the Fourth Proportional to 489,752.38, 675,821.21 and 274,850.93

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Solution

The fourth proportional to 489,752.38, 675,821.21 and 274,850.93 is: 379,273.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,752.38 : 675,821.21 = 274,850.93 : x
  2. Step 2: Convert to fraction form
    489,752.38/675,821.21 = 274,850.93/x
  3. Step 3: Cross multiply
    489,752.38x = 675,821.21 × 274,850.93
  4. Step 4: Simplify right side
    489,752.38x = 185,750,088,815.83
  5. Step 5: Solve for x
    x = 185,750,088,815.83/489,752.38
  6. Step 6: Final answer
    x = 379,273.48

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1.5x scale

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.