Home / 1,215,858.01-1,677,896.49-664,589.46

Finding the Fourth Proportional to 1,215,858.01, 1,677,896.49 and 664,589.46

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Solution

The fourth proportional to 1,215,858.01, 1,677,896.49 and 664,589.46 is: 917,140.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,858.01 : 1,677,896.49 = 664,589.46 : x
  2. Step 2: Convert to fraction form
    1,215,858.01/1,677,896.49 = 664,589.46/x
  3. Step 3: Cross multiply
    1,215,858.01x = 1,677,896.49 × 664,589.46
  4. Step 4: Simplify right side
    1,215,858.01x = 1,115,112,317,832.83
  5. Step 5: Solve for x
    x = 1,115,112,317,832.83/1,215,858.01
  6. Step 6: Final answer
    x = 917,140.25

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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.