Home / 1,209,736.40-1,814,604.60-411,918.80

Finding the Fourth Proportional to 1,209,736.40, 1,814,604.60 and 411,918.80

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Solution

The fourth proportional to 1,209,736.40, 1,814,604.60 and 411,918.80 is: 617,878.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,736.40 : 1,814,604.60 = 411,918.80 : x
  2. Step 2: Convert to fraction form
    1,209,736.40/1,814,604.60 = 411,918.80/x
  3. Step 3: Cross multiply
    1,209,736.40x = 1,814,604.60 × 411,918.80
  4. Step 4: Simplify right side
    1,209,736.40x = 747,469,749,306.48
  5. Step 5: Solve for x
    x = 747,469,749,306.48/1,209,736.40
  6. Step 6: Final answer
    x = 617,878.20

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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.