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Finding the Fourth Proportional to 643,674.40, 965,972.40 and 362,893.60

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Solution

The fourth proportional to 643,674.40, 965,972.40 and 362,893.60 is: 544,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,674.40 : 965,972.40 = 362,893.60 : x
  2. Step 2: Convert to fraction form
    643,674.40/965,972.40 = 362,893.60/x
  3. Step 3: Cross multiply
    643,674.40x = 965,972.40 × 362,893.60
  4. Step 4: Simplify right side
    643,674.40x = 350,545,201,736.64
  5. Step 5: Solve for x
    x = 350,545,201,736.64/643,674.40
  6. Step 6: Final answer
    x = 544,600.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.