Home / 1,221,611.37-1,686,026.03-677,921.79

Finding the Fourth Proportional to 1,221,611.37, 1,686,026.03 and 677,921.79

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Solution

The fourth proportional to 1,221,611.37, 1,686,026.03 and 677,921.79 is: 935,644.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,611.37 : 1,686,026.03 = 677,921.79 : x
  2. Step 2: Convert to fraction form
    1,221,611.37/1,686,026.03 = 677,921.79/x
  3. Step 3: Cross multiply
    1,221,611.37x = 1,686,026.03 × 677,921.79
  4. Step 4: Simplify right side
    1,221,611.37x = 1,142,993,784,244.19
  5. Step 5: Solve for x
    x = 1,142,993,784,244.19/1,221,611.37
  6. Step 6: Final answer
    x = 935,644.36

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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.