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Finding the Fourth Proportional to 489,833.79, 734,836.79 and 223,621.22

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Solution

The fourth proportional to 489,833.79, 734,836.79 and 223,621.22 is: 335,471.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,833.79 : 734,836.79 = 223,621.22 : x
  2. Step 2: Convert to fraction form
    489,833.79/734,836.79 = 223,621.22/x
  3. Step 3: Cross multiply
    489,833.79x = 734,836.79 × 223,621.22
  4. Step 4: Simplify right side
    489,833.79x = 164,325,096,365.55
  5. Step 5: Solve for x
    x = 164,325,096,365.55/489,833.79
  6. Step 6: Final answer
    x = 335,471.13

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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.