Home / 1,121,429.67-1,682,063.16-438,188.09

Finding the Fourth Proportional to 1,121,429.67, 1,682,063.16 and 438,188.09

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Solution

The fourth proportional to 1,121,429.67, 1,682,063.16 and 438,188.09 is: 657,250.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,429.67 : 1,682,063.16 = 438,188.09 : x
  2. Step 2: Convert to fraction form
    1,121,429.67/1,682,063.16 = 438,188.09/x
  3. Step 3: Cross multiply
    1,121,429.67x = 1,682,063.16 × 438,188.09
  4. Step 4: Simplify right side
    1,121,429.67x = 737,060,034,929.45
  5. Step 5: Solve for x
    x = 737,060,034,929.45/1,121,429.67
  6. Step 6: Final answer
    x = 657,250.34

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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.