Home / 1,187,733.44-1,638,686.80-671,437.42

Finding the Fourth Proportional to 1,187,733.44, 1,638,686.80 and 671,437.42

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Solution

The fourth proportional to 1,187,733.44, 1,638,686.80 and 671,437.42 is: 926,365.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,733.44 : 1,638,686.80 = 671,437.42 : x
  2. Step 2: Convert to fraction form
    1,187,733.44/1,638,686.80 = 671,437.42/x
  3. Step 3: Cross multiply
    1,187,733.44x = 1,638,686.80 × 671,437.42
  4. Step 4: Simplify right side
    1,187,733.44x = 1,100,275,633,922.64
  5. Step 5: Solve for x
    x = 1,100,275,633,922.64/1,187,733.44
  6. Step 6: Final answer
    x = 926,365.79

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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.