Home / 1,328,794.60-1,990,815.90-808,522.60

Finding the Fourth Proportional to 1,328,794.60, 1,990,815.90 and 808,522.60

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Solution

The fourth proportional to 1,328,794.60, 1,990,815.90 and 808,522.60 is: 1,211,338.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,794.60 : 1,990,815.90 = 808,522.60 : x
  2. Step 2: Convert to fraction form
    1,328,794.60/1,990,815.90 = 808,522.60/x
  3. Step 3: Cross multiply
    1,328,794.60x = 1,990,815.90 × 808,522.60
  4. Step 4: Simplify right side
    1,328,794.60x = 1,609,619,647,589.34
  5. Step 5: Solve for x
    x = 1,609,619,647,589.34/1,328,794.60
  6. Step 6: Final answer
    x = 1,211,338.19

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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.