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Finding the Fourth Proportional to 489,586.97, 734,606.45 and 223,429.07

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Solution

The fourth proportional to 489,586.97, 734,606.45 and 223,429.07 is: 335,246.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,586.97 : 734,606.45 = 223,429.07 : x
  2. Step 2: Convert to fraction form
    489,586.97/734,606.45 = 223,429.07/x
  3. Step 3: Cross multiply
    489,586.97x = 734,606.45 × 223,429.07
  4. Step 4: Simplify right side
    489,586.97x = 164,132,431,149.32
  5. Step 5: Solve for x
    x = 164,132,431,149.32/489,586.97
  6. Step 6: Final answer
    x = 335,246.73

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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.