Home / 1,210,783.80-1,814,879.70-411,324.60

Finding the Fourth Proportional to 1,210,783.80, 1,814,879.70 and 411,324.60

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Solution

The fourth proportional to 1,210,783.80, 1,814,879.70 and 411,324.60 is: 616,546.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,783.80 : 1,814,879.70 = 411,324.60 : x
  2. Step 2: Convert to fraction form
    1,210,783.80/1,814,879.70 = 411,324.60/x
  3. Step 3: Cross multiply
    1,210,783.80x = 1,814,879.70 × 411,324.60
  4. Step 4: Simplify right side
    1,210,783.80x = 746,504,666,650.62
  5. Step 5: Solve for x
    x = 746,504,666,650.62/1,210,783.80
  6. Step 6: Final answer
    x = 616,546.63

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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.