Home / 1,119,904.20-1,678,544.10-839,093.40

Finding the Fourth Proportional to 1,119,904.20, 1,678,544.10 and 839,093.40

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Solution

The fourth proportional to 1,119,904.20, 1,678,544.10 and 839,093.40 is: 1,257,656.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,904.20 : 1,678,544.10 = 839,093.40 : x
  2. Step 2: Convert to fraction form
    1,119,904.20/1,678,544.10 = 839,093.40/x
  3. Step 3: Cross multiply
    1,119,904.20x = 1,678,544.10 × 839,093.40
  4. Step 4: Simplify right side
    1,119,904.20x = 1,408,455,275,918.94
  5. Step 5: Solve for x
    x = 1,408,455,275,918.94/1,119,904.20
  6. Step 6: Final answer
    x = 1,257,656.93

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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.