Home / 1,330,889.40-1,996,334.10-905,736.60

Finding the Fourth Proportional to 1,330,889.40, 1,996,334.10 and 905,736.60

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Solution

The fourth proportional to 1,330,889.40, 1,996,334.10 and 905,736.60 is: 1,358,604.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,889.40 : 1,996,334.10 = 905,736.60 : x
  2. Step 2: Convert to fraction form
    1,330,889.40/1,996,334.10 = 905,736.60/x
  3. Step 3: Cross multiply
    1,330,889.40x = 1,996,334.10 × 905,736.60
  4. Step 4: Simplify right side
    1,330,889.40x = 1,808,152,860,198.06
  5. Step 5: Solve for x
    x = 1,808,152,860,198.06/1,330,889.40
  6. Step 6: Final answer
    x = 1,358,604.90

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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.