Home / 1,119,101.76-1,678,838.52-445,189.56

Finding the Fourth Proportional to 1,119,101.76, 1,678,838.52 and 445,189.56

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Solution

The fourth proportional to 1,119,101.76, 1,678,838.52 and 445,189.56 is: 667,858.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,101.76 : 1,678,838.52 = 445,189.56 : x
  2. Step 2: Convert to fraction form
    1,119,101.76/1,678,838.52 = 445,189.56/x
  3. Step 3: Cross multiply
    1,119,101.76x = 1,678,838.52 × 445,189.56
  4. Step 4: Simplify right side
    1,119,101.76x = 747,401,382,029.85
  5. Step 5: Solve for x
    x = 747,401,382,029.85/1,119,101.76
  6. Step 6: Final answer
    x = 667,858.28

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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.