Home / 816,415.20-1,223,310.60-603,838.80

Finding the Fourth Proportional to 816,415.20, 1,223,310.60 and 603,838.80

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Solution

The fourth proportional to 816,415.20, 1,223,310.60 and 603,838.80 is: 904,787.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,415.20 : 1,223,310.60 = 603,838.80 : x
  2. Step 2: Convert to fraction form
    816,415.20/1,223,310.60 = 603,838.80/x
  3. Step 3: Cross multiply
    816,415.20x = 1,223,310.60 × 603,838.80
  4. Step 4: Simplify right side
    816,415.20x = 738,682,404,731.28
  5. Step 5: Solve for x
    x = 738,682,404,731.28/816,415.20
  6. Step 6: Final answer
    x = 904,787.67

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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.