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Finding the Fourth Proportional to 394,813.72, 544,828.49 and 225,015.04

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Solution

The fourth proportional to 394,813.72, 544,828.49 and 225,015.04 is: 310,512.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,813.72 : 544,828.49 = 225,015.04 : x
  2. Step 2: Convert to fraction form
    394,813.72/544,828.49 = 225,015.04/x
  3. Step 3: Cross multiply
    394,813.72x = 544,828.49 × 225,015.04
  4. Step 4: Simplify right side
    394,813.72x = 122,594,601,746.35
  5. Step 5: Solve for x
    x = 122,594,601,746.35/394,813.72
  6. Step 6: Final answer
    x = 310,512.52

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1.5x scale

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.