Home / 489,094.80-674,983.08-274,248.60

Finding the Fourth Proportional to 489,094.80, 674,983.08 and 274,248.60

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Solution

The fourth proportional to 489,094.80, 674,983.08 and 274,248.60 is: 378,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,094.80 : 674,983.08 = 274,248.60 : x
  2. Step 2: Convert to fraction form
    489,094.80/674,983.08 = 274,248.60/x
  3. Step 3: Cross multiply
    489,094.80x = 674,983.08 × 274,248.60
  4. Step 4: Simplify right side
    489,094.80x = 185,113,164,713.69
  5. Step 5: Solve for x
    x = 185,113,164,713.69/489,094.80
  6. Step 6: Final answer
    x = 378,481.15

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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.