Home / 1,449,690.20-2,173,152.90-1,129,664.60

Finding the Fourth Proportional to 1,449,690.20, 2,173,152.90 and 1,129,664.60

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Solution

The fourth proportional to 1,449,690.20, 2,173,152.90 and 1,129,664.60 is: 1,693,419.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,449,690.20 : 2,173,152.90 = 1,129,664.60 : x
  2. Step 2: Convert to fraction form
    1,449,690.20/2,173,152.90 = 1,129,664.60/x
  3. Step 3: Cross multiply
    1,449,690.20x = 2,173,152.90 × 1,129,664.60
  4. Step 4: Simplify right side
    1,449,690.20x = 2,454,933,901,517.34
  5. Step 5: Solve for x
    x = 2,454,933,901,517.34/1,449,690.20
  6. Step 6: Final answer
    x = 1,693,419.67

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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.