Home / 1,239,957.14-1,858,203.45-670,109.72

Finding the Fourth Proportional to 1,239,957.14, 1,858,203.45 and 670,109.72

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Solution

The fourth proportional to 1,239,957.14, 1,858,203.45 and 670,109.72 is: 1,004,228.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,957.14 : 1,858,203.45 = 670,109.72 : x
  2. Step 2: Convert to fraction form
    1,239,957.14/1,858,203.45 = 670,109.72/x
  3. Step 3: Cross multiply
    1,239,957.14x = 1,858,203.45 × 670,109.72
  4. Step 4: Simplify right side
    1,239,957.14x = 1,245,200,193,582.53
  5. Step 5: Solve for x
    x = 1,245,200,193,582.53/1,239,957.14
  6. Step 6: Final answer
    x = 1,004,228.42

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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.