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Finding the Fourth Proportional to 643,624.40, 965,897.40 and 362,843.60

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Solution

The fourth proportional to 643,624.40, 965,897.40 and 362,843.60 is: 544,525.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,624.40 : 965,897.40 = 362,843.60 : x
  2. Step 2: Convert to fraction form
    643,624.40/965,897.40 = 362,843.60/x
  3. Step 3: Cross multiply
    643,624.40x = 965,897.40 × 362,843.60
  4. Step 4: Simplify right side
    643,624.40x = 350,469,689,846.64
  5. Step 5: Solve for x
    x = 350,469,689,846.64/643,624.40
  6. Step 6: Final answer
    x = 544,525.18

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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.