Home / 1,286,018.28-1,928,633.45-889,209

Finding the Fourth Proportional to 1,286,018.28, 1,928,633.45 and 889,209

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Solution

The fourth proportional to 1,286,018.28, 1,928,633.45 and 889,209 is: 1,333,541.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,018.28 : 1,928,633.45 = 889,209 : x
  2. Step 2: Convert to fraction form
    1,286,018.28/1,928,633.45 = 889,209/x
  3. Step 3: Cross multiply
    1,286,018.28x = 1,928,633.45 × 889,209
  4. Step 4: Simplify right side
    1,286,018.28x = 1,714,958,221,441.05
  5. Step 5: Solve for x
    x = 1,714,958,221,441.05/1,286,018.28
  6. Step 6: Final answer
    x = 1,333,541.09

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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.