Home / 1,586,187.90-2,188,942.10-861,036.12

Finding the Fourth Proportional to 1,586,187.90, 2,188,942.10 and 861,036.12

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Solution

The fourth proportional to 1,586,187.90, 2,188,942.10 and 861,036.12 is: 1,188,231.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,187.90 : 2,188,942.10 = 861,036.12 : x
  2. Step 2: Convert to fraction form
    1,586,187.90/2,188,942.10 = 861,036.12/x
  3. Step 3: Cross multiply
    1,586,187.90x = 2,188,942.10 × 861,036.12
  4. Step 4: Simplify right side
    1,586,187.90x = 1,884,758,212,688.65
  5. Step 5: Solve for x
    x = 1,884,758,212,688.65/1,586,187.90
  6. Step 6: Final answer
    x = 1,188,231.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.