Home / 489,278.23-734,104.16-189,968.96

Finding the Fourth Proportional to 489,278.23, 734,104.16 and 189,968.96

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Solution

The fourth proportional to 489,278.23, 734,104.16 and 189,968.96 is: 285,025.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,278.23 : 734,104.16 = 189,968.96 : x
  2. Step 2: Convert to fraction form
    489,278.23/734,104.16 = 189,968.96/x
  3. Step 3: Cross multiply
    489,278.23x = 734,104.16 × 189,968.96
  4. Step 4: Simplify right side
    489,278.23x = 139,457,003,806.87
  5. Step 5: Solve for x
    x = 139,457,003,806.87/489,278.23
  6. Step 6: Final answer
    x = 285,025.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.