Home / 1,428,115.68-1,970,734.30-783,522.56

Finding the Fourth Proportional to 1,428,115.68, 1,970,734.30 and 783,522.56

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Solution

The fourth proportional to 1,428,115.68, 1,970,734.30 and 783,522.56 is: 1,081,225.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,115.68 : 1,970,734.30 = 783,522.56 : x
  2. Step 2: Convert to fraction form
    1,428,115.68/1,970,734.30 = 783,522.56/x
  3. Step 3: Cross multiply
    1,428,115.68x = 1,970,734.30 × 783,522.56
  4. Step 4: Simplify right side
    1,428,115.68x = 1,544,114,783,815.81
  5. Step 5: Solve for x
    x = 1,544,114,783,815.81/1,428,115.68
  6. Step 6: Final answer
    x = 1,081,225.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.