Home / 3,985,805.70-5,979,583.35-1,289,672.10

Finding the Fourth Proportional to 3,985,805.70, 5,979,583.35 and 1,289,672.10

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Solution

The fourth proportional to 3,985,805.70, 5,979,583.35 and 1,289,672.10 is: 1,934,791.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985,805.70 : 5,979,583.35 = 1,289,672.10 : x
  2. Step 2: Convert to fraction form
    3,985,805.70/5,979,583.35 = 1,289,672.10/x
  3. Step 3: Cross multiply
    3,985,805.70x = 5,979,583.35 × 1,289,672.10
  4. Step 4: Simplify right side
    3,985,805.70x = 7,711,701,816,119.54
  5. Step 5: Solve for x
    x = 7,711,701,816,119.54/3,985,805.70
  6. Step 6: Final answer
    x = 1,934,791.21

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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.