Home / 1,211,885.46-1,673,999.25-905,429.22

Finding the Fourth Proportional to 1,211,885.46, 1,673,999.25 and 905,429.22

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Solution

The fourth proportional to 1,211,885.46, 1,673,999.25 and 905,429.22 is: 1,250,685.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,885.46 : 1,673,999.25 = 905,429.22 : x
  2. Step 2: Convert to fraction form
    1,211,885.46/1,673,999.25 = 905,429.22/x
  3. Step 3: Cross multiply
    1,211,885.46x = 1,673,999.25 × 905,429.22
  4. Step 4: Simplify right side
    1,211,885.46x = 1,515,687,835,208.09
  5. Step 5: Solve for x
    x = 1,515,687,835,208.09/1,211,885.46
  6. Step 6: Final answer
    x = 1,250,685.72

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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.