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Finding the Fourth Proportional to 609,492, 840,904.44 and 394,796.64

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Solution

The fourth proportional to 609,492, 840,904.44 and 394,796.64 is: 544,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,492 : 840,904.44 = 394,796.64 : x
  2. Step 2: Convert to fraction form
    609,492/840,904.44 = 394,796.64/x
  3. Step 3: Cross multiply
    609,492x = 840,904.44 × 394,796.64
  4. Step 4: Simplify right side
    609,492x = 331,986,247,473.08
  5. Step 5: Solve for x
    x = 331,986,247,473.08/609,492
  6. Step 6: Final answer
    x = 544,693.36

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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.