Finding the Fourth Proportional to 557,557.36, 769,373.64 and 315,791.68
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Solution
The fourth proportional to 557,557.36, 769,373.64 and 315,791.68 is: 435,761.07
Step by Step Solution
- Step 1: Write the proportion equation
557,557.36 : 769,373.64 = 315,791.68 : x - Step 2: Convert to fraction form
557,557.36/769,373.64 = 315,791.68/x - Step 3: Cross multiply
557,557.36x = 769,373.64 × 315,791.68 - Step 4: Simplify right side
557,557.36x = 242,961,794,323.32 - Step 5: Solve for x
x = 242,961,794,323.32/557,557.36 - Step 6: Final answer
x = 435,761.07
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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.