Home / 1,286,009.05-1,928,619.56-889,199.77

Finding the Fourth Proportional to 1,286,009.05, 1,928,619.56 and 889,199.77

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Solution

The fourth proportional to 1,286,009.05, 1,928,619.56 and 889,199.77 is: 1,333,527.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,009.05 : 1,928,619.56 = 889,199.77 : x
  2. Step 2: Convert to fraction form
    1,286,009.05/1,928,619.56 = 889,199.77/x
  3. Step 3: Cross multiply
    1,286,009.05x = 1,928,619.56 × 889,199.77
  4. Step 4: Simplify right side
    1,286,009.05x = 1,714,928,064,723.50
  5. Step 5: Solve for x
    x = 1,714,928,064,723.50/1,286,009.05
  6. Step 6: Final answer
    x = 1,333,527.21

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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.