Home / 1,208,133.90-1,812,076.11-409,394.66

Finding the Fourth Proportional to 1,208,133.90, 1,812,076.11 and 409,394.66

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Solution

The fourth proportional to 1,208,133.90, 1,812,076.11 and 409,394.66 is: 614,049.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,133.90 : 1,812,076.11 = 409,394.66 : x
  2. Step 2: Convert to fraction form
    1,208,133.90/1,812,076.11 = 409,394.66/x
  3. Step 3: Cross multiply
    1,208,133.90x = 1,812,076.11 × 409,394.66
  4. Step 4: Simplify right side
    1,208,133.90x = 741,854,273,887.19
  5. Step 5: Solve for x
    x = 741,854,273,887.19/1,208,133.90
  6. Step 6: Final answer
    x = 614,049.71

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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.