Home / 1,522,521.71-2,100,999.62-869,121.77

Finding the Fourth Proportional to 1,522,521.71, 2,100,999.62 and 869,121.77

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Solution

The fourth proportional to 1,522,521.71, 2,100,999.62 and 869,121.77 is: 1,199,342.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,522,521.71 : 2,100,999.62 = 869,121.77 : x
  2. Step 2: Convert to fraction form
    1,522,521.71/2,100,999.62 = 869,121.77/x
  3. Step 3: Cross multiply
    1,522,521.71x = 2,100,999.62 × 869,121.77
  4. Step 4: Simplify right side
    1,522,521.71x = 1,826,024,504,158.12
  5. Step 5: Solve for x
    x = 1,826,024,504,158.12/1,522,521.71
  6. Step 6: Final answer
    x = 1,199,342.18

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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.