Home / 1,391,579.76-1,905,991.08-1,309,873.44

Finding the Fourth Proportional to 1,391,579.76, 1,905,991.08 and 1,309,873.44

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Solution

The fourth proportional to 1,391,579.76, 1,905,991.08 and 1,309,873.44 is: 1,794,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,579.76 : 1,905,991.08 = 1,309,873.44 : x
  2. Step 2: Convert to fraction form
    1,391,579.76/1,905,991.08 = 1,309,873.44/x
  3. Step 3: Cross multiply
    1,391,579.76x = 1,905,991.08 × 1,309,873.44
  4. Step 4: Simplify right side
    1,391,579.76x = 2,496,607,092,568.92
  5. Step 5: Solve for x
    x = 2,496,607,092,568.92/1,391,579.76
  6. Step 6: Final answer
    x = 1,794,081.20

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.