Home / 1,121,446.89-1,682,088.93-438,205.41

Finding the Fourth Proportional to 1,121,446.89, 1,682,088.93 and 438,205.41

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Solution

The fourth proportional to 1,121,446.89, 1,682,088.93 and 438,205.41 is: 657,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,446.89 : 1,682,088.93 = 438,205.41 : x
  2. Step 2: Convert to fraction form
    1,121,446.89/1,682,088.93 = 438,205.41/x
  3. Step 3: Cross multiply
    1,121,446.89x = 1,682,088.93 × 438,205.41
  4. Step 4: Simplify right side
    1,121,446.89x = 737,100,469,227.11
  5. Step 5: Solve for x
    x = 737,100,469,227.11/1,121,446.89
  6. Step 6: Final answer
    x = 657,276.31

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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.