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Finding the Fourth Proportional to 629,959.40, 944,334.30 and 209,018.60

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Solution

The fourth proportional to 629,959.40, 944,334.30 and 209,018.60 is: 313,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,959.40 : 944,334.30 = 209,018.60 : x
  2. Step 2: Convert to fraction form
    629,959.40/944,334.30 = 209,018.60/x
  3. Step 3: Cross multiply
    629,959.40x = 944,334.30 × 209,018.60
  4. Step 4: Simplify right side
    629,959.40x = 197,383,433,317.98
  5. Step 5: Solve for x
    x = 197,383,433,317.98/629,959.40
  6. Step 6: Final answer
    x = 313,327.23

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1.5x scale

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.