Home / 642,404.20-963,606.30-199,114.60

Finding the Fourth Proportional to 642,404.20, 963,606.30 and 199,114.60

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Solution

The fourth proportional to 642,404.20, 963,606.30 and 199,114.60 is: 298,671.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,404.20 : 963,606.30 = 199,114.60 : x
  2. Step 2: Convert to fraction form
    642,404.20/963,606.30 = 199,114.60/x
  3. Step 3: Cross multiply
    642,404.20x = 963,606.30 × 199,114.60
  4. Step 4: Simplify right side
    642,404.20x = 191,868,082,981.98
  5. Step 5: Solve for x
    x = 191,868,082,981.98/642,404.20
  6. Step 6: Final answer
    x = 298,671.90

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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.