Home / 1,382,453.74-1,907,795.15-770,645.35

Finding the Fourth Proportional to 1,382,453.74, 1,907,795.15 and 770,645.35

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Solution

The fourth proportional to 1,382,453.74, 1,907,795.15 and 770,645.35 is: 1,063,495.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,453.74 : 1,907,795.15 = 770,645.35 : x
  2. Step 2: Convert to fraction form
    1,382,453.74/1,907,795.15 = 770,645.35/x
  3. Step 3: Cross multiply
    1,382,453.74x = 1,907,795.15 × 770,645.35
  4. Step 4: Simplify right side
    1,382,453.74x = 1,470,233,461,100.05
  5. Step 5: Solve for x
    x = 1,470,233,461,100.05/1,382,453.74
  6. Step 6: Final answer
    x = 1,063,495.59

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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.