Home / 1,211,625.45-1,672,035.35-667,761.75

Finding the Fourth Proportional to 1,211,625.45, 1,672,035.35 and 667,761.75

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Solution

The fourth proportional to 1,211,625.45, 1,672,035.35 and 667,761.75 is: 921,506.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,625.45 : 1,672,035.35 = 667,761.75 : x
  2. Step 2: Convert to fraction form
    1,211,625.45/1,672,035.35 = 667,761.75/x
  3. Step 3: Cross multiply
    1,211,625.45x = 1,672,035.35 × 667,761.75
  4. Step 4: Simplify right side
    1,211,625.45x = 1,116,521,248,039.05
  5. Step 5: Solve for x
    x = 1,116,521,248,039.05/1,211,625.45
  6. Step 6: Final answer
    x = 921,506.93

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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.