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Finding the Fourth Proportional to 647,782.37, 971,673.55 and 347,850.36

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Solution

The fourth proportional to 647,782.37, 971,673.55 and 347,850.36 is: 521,775.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,782.37 : 971,673.55 = 347,850.36 : x
  2. Step 2: Convert to fraction form
    647,782.37/971,673.55 = 347,850.36/x
  3. Step 3: Cross multiply
    647,782.37x = 971,673.55 × 347,850.36
  4. Step 4: Simplify right side
    647,782.37x = 337,996,994,169.98
  5. Step 5: Solve for x
    x = 337,996,994,169.98/647,782.37
  6. Step 6: Final answer
    x = 521,775.54

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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.