Home / 1,211,460.26-1,671,826.22-667,615.57

Finding the Fourth Proportional to 1,211,460.26, 1,671,826.22 and 667,615.57

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Solution

The fourth proportional to 1,211,460.26, 1,671,826.22 and 667,615.57 is: 921,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,460.26 : 1,671,826.22 = 667,615.57 : x
  2. Step 2: Convert to fraction form
    1,211,460.26/1,671,826.22 = 667,615.57/x
  3. Step 3: Cross multiply
    1,211,460.26x = 1,671,826.22 × 667,615.57
  4. Step 4: Simplify right side
    1,211,460.26x = 1,116,137,212,295.72
  5. Step 5: Solve for x
    x = 1,116,137,212,295.72/1,211,460.26
  6. Step 6: Final answer
    x = 921,315.58

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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.