Finding the Fourth Proportional to 557,801.12, 769,743.86 and 303,146.84
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Solution
The fourth proportional to 557,801.12, 769,743.86 and 303,146.84 is: 418,330.85
Step by Step Solution
- Step 1: Write the proportion equation
557,801.12 : 769,743.86 = 303,146.84 : x - Step 2: Convert to fraction form
557,801.12/769,743.86 = 303,146.84/x - Step 3: Cross multiply
557,801.12x = 769,743.86 × 303,146.84 - Step 4: Simplify right side
557,801.12x = 233,345,418,768.40 - Step 5: Solve for x
x = 233,345,418,768.40/557,801.12 - Step 6: Final answer
x = 418,330.85
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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.