Home / 1,405,045.26-1,939,009.68-861,076.17

Finding the Fourth Proportional to 1,405,045.26, 1,939,009.68 and 861,076.17

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Solution

The fourth proportional to 1,405,045.26, 1,939,009.68 and 861,076.17 is: 1,188,314.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,045.26 : 1,939,009.68 = 861,076.17 : x
  2. Step 2: Convert to fraction form
    1,405,045.26/1,939,009.68 = 861,076.17/x
  3. Step 3: Cross multiply
    1,405,045.26x = 1,939,009.68 × 861,076.17
  4. Step 4: Simplify right side
    1,405,045.26x = 1,669,635,028,847.33
  5. Step 5: Solve for x
    x = 1,669,635,028,847.33/1,405,045.26
  6. Step 6: Final answer
    x = 1,188,314.05

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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.