Home / 489,276.23-734,101.16-189,966.96

Finding the Fourth Proportional to 489,276.23, 734,101.16 and 189,966.96

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Solution

The fourth proportional to 489,276.23, 734,101.16 and 189,966.96 is: 285,022.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,276.23 : 734,101.16 = 189,966.96 : x
  2. Step 2: Convert to fraction form
    489,276.23/734,101.16 = 189,966.96/x
  3. Step 3: Cross multiply
    489,276.23x = 734,101.16 × 189,966.96
  4. Step 4: Simplify right side
    489,276.23x = 139,454,964,747.84
  5. Step 5: Solve for x
    x = 139,454,964,747.84/489,276.23
  6. Step 6: Final answer
    x = 285,022.97

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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.