Home / 1,561,441.32-2,154,792.94-873,138.16

Finding the Fourth Proportional to 1,561,441.32, 2,154,792.94 and 873,138.16

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Solution

The fourth proportional to 1,561,441.32, 2,154,792.94 and 873,138.16 is: 1,204,932.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,441.32 : 2,154,792.94 = 873,138.16 : x
  2. Step 2: Convert to fraction form
    1,561,441.32/2,154,792.94 = 873,138.16/x
  3. Step 3: Cross multiply
    1,561,441.32x = 2,154,792.94 × 873,138.16
  4. Step 4: Simplify right side
    1,561,441.32x = 1,881,431,942,812.59
  5. Step 5: Solve for x
    x = 1,881,431,942,812.59/1,561,441.32
  6. Step 6: Final answer
    x = 1,204,932.85

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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.