Home / 789,234.34-1,088,876.88-449,462.02

Finding the Fourth Proportional to 789,234.34, 1,088,876.88 and 449,462.02

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Solution

The fourth proportional to 789,234.34, 1,088,876.88 and 449,462.02 is: 620,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,234.34 : 1,088,876.88 = 449,462.02 : x
  2. Step 2: Convert to fraction form
    789,234.34/1,088,876.88 = 449,462.02/x
  3. Step 3: Cross multiply
    789,234.34x = 1,088,876.88 × 449,462.02
  4. Step 4: Simplify right side
    789,234.34x = 489,408,802,016.10
  5. Step 5: Solve for x
    x = 489,408,802,016.10/789,234.34
  6. Step 6: Final answer
    x = 620,105.81

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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.