Home / 1,079,338.30-1,618,711.90-405,367.47

Finding the Fourth Proportional to 1,079,338.30, 1,618,711.90 and 405,367.47

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Solution

The fourth proportional to 1,079,338.30, 1,618,711.90 and 405,367.47 is: 607,940.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,338.30 : 1,618,711.90 = 405,367.47 : x
  2. Step 2: Convert to fraction form
    1,079,338.30/1,618,711.90 = 405,367.47/x
  3. Step 3: Cross multiply
    1,079,338.30x = 1,618,711.90 × 405,367.47
  4. Step 4: Simplify right side
    1,079,338.30x = 656,173,146,548.47
  5. Step 5: Solve for x
    x = 656,173,146,548.47/1,079,338.30
  6. Step 6: Final answer
    x = 607,940.21

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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.