Home / 1,185,331.51-1,777,816.23-386,611.57

Finding the Fourth Proportional to 1,185,331.51, 1,777,816.23 and 386,611.57

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Solution

The fourth proportional to 1,185,331.51, 1,777,816.23 and 386,611.57 is: 579,858.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,331.51 : 1,777,816.23 = 386,611.57 : x
  2. Step 2: Convert to fraction form
    1,185,331.51/1,777,816.23 = 386,611.57/x
  3. Step 3: Cross multiply
    1,185,331.51x = 1,777,816.23 × 386,611.57
  4. Step 4: Simplify right side
    1,185,331.51x = 687,324,323,851.78
  5. Step 5: Solve for x
    x = 687,324,323,851.78/1,185,331.51
  6. Step 6: Final answer
    x = 579,858.31

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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.