Home / 769,930.50-1,154,876.31-208,950.42

Finding the Fourth Proportional to 769,930.50, 1,154,876.31 and 208,950.42

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Solution

The fourth proportional to 769,930.50, 1,154,876.31 and 208,950.42 is: 313,420.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,930.50 : 1,154,876.31 = 208,950.42 : x
  2. Step 2: Convert to fraction form
    769,930.50/1,154,876.31 = 208,950.42/x
  3. Step 3: Cross multiply
    769,930.50x = 1,154,876.31 × 208,950.42
  4. Step 4: Simplify right side
    769,930.50x = 241,311,890,022.55
  5. Step 5: Solve for x
    x = 241,311,890,022.55/769,930.50
  6. Step 6: Final answer
    x = 313,420.35

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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.