Home / 1,211,416.72-1,671,766.28-667,571.96

Finding the Fourth Proportional to 1,211,416.72, 1,671,766.28 and 667,571.96

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Solution

The fourth proportional to 1,211,416.72, 1,671,766.28 and 667,571.96 is: 921,255.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,416.72 : 1,671,766.28 = 667,571.96 : x
  2. Step 2: Convert to fraction form
    1,211,416.72/1,671,766.28 = 667,571.96/x
  3. Step 3: Cross multiply
    1,211,416.72x = 1,671,766.28 × 667,571.96
  4. Step 4: Simplify right side
    1,211,416.72x = 1,116,024,292,201.51
  5. Step 5: Solve for x
    x = 1,116,024,292,201.51/1,211,416.72
  6. Step 6: Final answer
    x = 921,255.48

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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.