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Finding the Fourth Proportional to 629,813.40, 944,115.30 and 208,872.60

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Solution

The fourth proportional to 629,813.40, 944,115.30 and 208,872.60 is: 313,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,813.40 : 944,115.30 = 208,872.60 : x
  2. Step 2: Convert to fraction form
    629,813.40/944,115.30 = 208,872.60/x
  3. Step 3: Cross multiply
    629,813.40x = 944,115.30 × 208,872.60
  4. Step 4: Simplify right side
    629,813.40x = 197,199,817,410.78
  5. Step 5: Solve for x
    x = 197,199,817,410.78/629,813.40
  6. Step 6: Final answer
    x = 313,108.32

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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.