Home / 769,815.20-1,154,722.80-629,847.20

Finding the Fourth Proportional to 769,815.20, 1,154,722.80 and 629,847.20

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Solution

The fourth proportional to 769,815.20, 1,154,722.80 and 629,847.20 is: 944,770.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,815.20 : 1,154,722.80 = 629,847.20 : x
  2. Step 2: Convert to fraction form
    769,815.20/1,154,722.80 = 629,847.20/x
  3. Step 3: Cross multiply
    769,815.20x = 1,154,722.80 × 629,847.20
  4. Step 4: Simplify right side
    769,815.20x = 727,298,922,356.16
  5. Step 5: Solve for x
    x = 727,298,922,356.16/769,815.20
  6. Step 6: Final answer
    x = 944,770.80

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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.