Home / 1,139,138.85-1,571,994.34-622,894.39

Finding the Fourth Proportional to 1,139,138.85, 1,571,994.34 and 622,894.39

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Solution

The fourth proportional to 1,139,138.85, 1,571,994.34 and 622,894.39 is: 859,584.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,138.85 : 1,571,994.34 = 622,894.39 : x
  2. Step 2: Convert to fraction form
    1,139,138.85/1,571,994.34 = 622,894.39/x
  3. Step 3: Cross multiply
    1,139,138.85x = 1,571,994.34 × 622,894.39
  4. Step 4: Simplify right side
    1,139,138.85x = 979,186,455,497.75
  5. Step 5: Solve for x
    x = 979,186,455,497.75/1,139,138.85
  6. Step 6: Final answer
    x = 859,584.81

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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.