Finding the Fourth Proportional to 1,269,212.36, 1,751,536.74 and 778,936.07
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Solution
The fourth proportional to 1,269,212.36, 1,751,536.74 and 778,936.07 is: 1,074,946.31
Step by Step Solution
- Step 1: Write the proportion equation
1,269,212.36 : 1,751,536.74 = 778,936.07 : x - Step 2: Convert to fraction form
1,269,212.36/1,751,536.74 = 778,936.07/x - Step 3: Cross multiply
1,269,212.36x = 1,751,536.74 × 778,936.07 - Step 4: Simplify right side
1,269,212.36x = 1,364,335,144,716.21 - Step 5: Solve for x
x = 1,364,335,144,716.21/1,269,212.36 - Step 6: Final answer
x = 1,074,946.31
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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.