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Finding the Fourth Proportional to 1,330,361, 1,995,558.78 and 443,897

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Solution

The fourth proportional to 1,330,361, 1,995,558.78 and 443,897 is: 665,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,361 : 1,995,558.78 = 443,897 : x
  2. Step 2: Convert to fraction form
    1,330,361/1,995,558.78 = 443,897/x
  3. Step 3: Cross multiply
    1,330,361x = 1,995,558.78 × 443,897
  4. Step 4: Simplify right side
    1,330,361x = 885,822,555,765.66
  5. Step 5: Solve for x
    x = 885,822,555,765.66/1,330,361
  6. Step 6: Final answer
    x = 665,851.27

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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.