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Finding the Fourth Proportional to 643,830.44, 966,381.54 and 483,348.44

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Solution

The fourth proportional to 643,830.44, 966,381.54 and 483,348.44 is: 725,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,830.44 : 966,381.54 = 483,348.44 : x
  2. Step 2: Convert to fraction form
    643,830.44/966,381.54 = 483,348.44/x
  3. Step 3: Cross multiply
    643,830.44x = 966,381.54 × 483,348.44
  4. Step 4: Simplify right side
    643,830.44x = 467,099,009,803.80
  5. Step 5: Solve for x
    x = 467,099,009,803.80/643,830.44
  6. Step 6: Final answer
    x = 725,500.04

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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.