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Finding the Fourth Proportional to 449,122.79, 619,767.69 and 255,512.27

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Solution

The fourth proportional to 449,122.79, 619,767.69 and 255,512.27 is: 352,594.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,122.79 : 619,767.69 = 255,512.27 : x
  2. Step 2: Convert to fraction form
    449,122.79/619,767.69 = 255,512.27/x
  3. Step 3: Cross multiply
    449,122.79x = 619,767.69 × 255,512.27
  4. Step 4: Simplify right side
    449,122.79x = 158,358,249,344.56
  5. Step 5: Solve for x
    x = 158,358,249,344.56/449,122.79
  6. Step 6: Final answer
    x = 352,594.55

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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.