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Finding the Fourth Proportional to 489,520.46, 675,548.70 and 274,676.06

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Solution

The fourth proportional to 489,520.46, 675,548.70 and 274,676.06 is: 379,058.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,520.46 : 675,548.70 = 274,676.06 : x
  2. Step 2: Convert to fraction form
    489,520.46/675,548.70 = 274,676.06/x
  3. Step 3: Cross multiply
    489,520.46x = 675,548.70 × 274,676.06
  4. Step 4: Simplify right side
    489,520.46x = 185,557,055,254.12
  5. Step 5: Solve for x
    x = 185,557,055,254.12/489,520.46
  6. Step 6: Final answer
    x = 379,058.83

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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.