Home / 1,138,964.45-1,571,703.39-629,636.45

Finding the Fourth Proportional to 1,138,964.45, 1,571,703.39 and 629,636.45

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Solution

The fourth proportional to 1,138,964.45, 1,571,703.39 and 629,636.45 is: 868,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,964.45 : 1,571,703.39 = 629,636.45 : x
  2. Step 2: Convert to fraction form
    1,138,964.45/1,571,703.39 = 629,636.45/x
  3. Step 3: Cross multiply
    1,138,964.45x = 1,571,703.39 × 629,636.45
  4. Step 4: Simplify right side
    1,138,964.45x = 989,601,735,074.05
  5. Step 5: Solve for x
    x = 989,601,735,074.05/1,138,964.45
  6. Step 6: Final answer
    x = 868,860.95

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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.