Home / 1,138,077.23-1,568,722.50-770,438.43

Finding the Fourth Proportional to 1,138,077.23, 1,568,722.50 and 770,438.43

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Solution

The fourth proportional to 1,138,077.23, 1,568,722.50 and 770,438.43 is: 1,061,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,077.23 : 1,568,722.50 = 770,438.43 : x
  2. Step 2: Convert to fraction form
    1,138,077.23/1,568,722.50 = 770,438.43/x
  3. Step 3: Cross multiply
    1,138,077.23x = 1,568,722.50 × 770,438.43
  4. Step 4: Simplify right side
    1,138,077.23x = 1,208,604,100,005.68
  5. Step 5: Solve for x
    x = 1,208,604,100,005.68/1,138,077.23
  6. Step 6: Final answer
    x = 1,061,970.20

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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.