Home / 1,286,009.41-1,928,620.12-889,200.13

Finding the Fourth Proportional to 1,286,009.41, 1,928,620.12 and 889,200.13

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Solution

The fourth proportional to 1,286,009.41, 1,928,620.12 and 889,200.13 is: 1,333,527.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,009.41 : 1,928,620.12 = 889,200.13 : x
  2. Step 2: Convert to fraction form
    1,286,009.41/1,928,620.12 = 889,200.13/x
  3. Step 3: Cross multiply
    1,286,009.41x = 1,928,620.12 × 889,200.13
  4. Step 4: Simplify right side
    1,286,009.41x = 1,714,929,261,424.62
  5. Step 5: Solve for x
    x = 1,714,929,261,424.62/1,286,009.41
  6. Step 6: Final answer
    x = 1,333,527.77

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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.