Home / 1,721,930.88-2,582,892-820,640.64

Finding the Fourth Proportional to 1,721,930.88, 2,582,892 and 820,640.64

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Solution

The fourth proportional to 1,721,930.88, 2,582,892 and 820,640.64 is: 1,230,958.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,930.88 : 2,582,892 = 820,640.64 : x
  2. Step 2: Convert to fraction form
    1,721,930.88/2,582,892 = 820,640.64/x
  3. Step 3: Cross multiply
    1,721,930.88x = 2,582,892 × 820,640.64
  4. Step 4: Simplify right side
    1,721,930.88x = 2,119,626,143,930.88
  5. Step 5: Solve for x
    x = 2,119,626,143,930.88/1,721,930.88
  6. Step 6: Final answer
    x = 1,230,958.90

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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.