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Finding the Fourth Proportional to 394,509.34, 544,411.99 and 222,425.79

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Solution

The fourth proportional to 394,509.34, 544,411.99 and 222,425.79 is: 306,941.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,509.34 : 544,411.99 = 222,425.79 : x
  2. Step 2: Convert to fraction form
    394,509.34/544,411.99 = 222,425.79/x
  3. Step 3: Cross multiply
    394,509.34x = 544,411.99 × 222,425.79
  4. Step 4: Simplify right side
    394,509.34x = 121,091,265,477.72
  5. Step 5: Solve for x
    x = 121,091,265,477.72/394,509.34
  6. Step 6: Final answer
    x = 306,941.44

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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.