Home / 1,222,238.93-1,686,676.95-678,379.41

Finding the Fourth Proportional to 1,222,238.93, 1,686,676.95 and 678,379.41

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Solution

The fourth proportional to 1,222,238.93, 1,686,676.95 and 678,379.41 is: 936,156.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,238.93 : 1,686,676.95 = 678,379.41 : x
  2. Step 2: Convert to fraction form
    1,222,238.93/1,686,676.95 = 678,379.41/x
  3. Step 3: Cross multiply
    1,222,238.93x = 1,686,676.95 × 678,379.41
  4. Step 4: Simplify right side
    1,222,238.93x = 1,144,206,914,201.60
  5. Step 5: Solve for x
    x = 1,144,206,914,201.60/1,222,238.93
  6. Step 6: Final answer
    x = 936,156.50

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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.