Home / 1,222,611.20-1,834,791.60-513,148.40

Finding the Fourth Proportional to 1,222,611.20, 1,834,791.60 and 513,148.40

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Solution

The fourth proportional to 1,222,611.20, 1,834,791.60 and 513,148.40 is: 770,089.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,611.20 : 1,834,791.60 = 513,148.40 : x
  2. Step 2: Convert to fraction form
    1,222,611.20/1,834,791.60 = 513,148.40/x
  3. Step 3: Cross multiply
    1,222,611.20x = 1,834,791.60 × 513,148.40
  4. Step 4: Simplify right side
    1,222,611.20x = 941,520,373,873.44
  5. Step 5: Solve for x
    x = 941,520,373,873.44/1,222,611.20
  6. Step 6: Final answer
    x = 770,089.77

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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.