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Finding the Fourth Proportional to 694,468.80, 958,361.76 and 392,673.60

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Solution

The fourth proportional to 694,468.80, 958,361.76 and 392,673.60 is: 541,886.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,468.80 : 958,361.76 = 392,673.60 : x
  2. Step 2: Convert to fraction form
    694,468.80/958,361.76 = 392,673.60/x
  3. Step 3: Cross multiply
    694,468.80x = 958,361.76 × 392,673.60
  4. Step 4: Simplify right side
    694,468.80x = 376,323,362,401.54
  5. Step 5: Solve for x
    x = 376,323,362,401.54/694,468.80
  6. Step 6: Final answer
    x = 541,886.64

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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.