Home / 1,382,279.12-1,907,554.03-770,470.67

Finding the Fourth Proportional to 1,382,279.12, 1,907,554.03 and 770,470.67

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Solution

The fourth proportional to 1,382,279.12, 1,907,554.03 and 770,470.67 is: 1,063,254.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,279.12 : 1,907,554.03 = 770,470.67 : x
  2. Step 2: Convert to fraction form
    1,382,279.12/1,907,554.03 = 770,470.67/x
  3. Step 3: Cross multiply
    1,382,279.12x = 1,907,554.03 × 770,470.67
  4. Step 4: Simplify right side
    1,382,279.12x = 1,469,714,431,555.30
  5. Step 5: Solve for x
    x = 1,469,714,431,555.30/1,382,279.12
  6. Step 6: Final answer
    x = 1,063,254.46

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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.