Home / 775,310.70-1,163,311.65-354,369.90

Finding the Fourth Proportional to 775,310.70, 1,163,311.65 and 354,369.90

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Solution

The fourth proportional to 775,310.70, 1,163,311.65 and 354,369.90 is: 531,712.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,310.70 : 1,163,311.65 = 354,369.90 : x
  2. Step 2: Convert to fraction form
    775,310.70/1,163,311.65 = 354,369.90/x
  3. Step 3: Cross multiply
    775,310.70x = 1,163,311.65 × 354,369.90
  4. Step 4: Simplify right side
    775,310.70x = 412,242,633,079.34
  5. Step 5: Solve for x
    x = 412,242,633,079.34/775,310.70
  6. Step 6: Final answer
    x = 531,712.81

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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.