Finding the Fourth Proportional to 388,473.42, 536,054.68 and 286,553.94
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Solution
The fourth proportional to 388,473.42, 536,054.68 and 286,553.94 is: 395,415.94
Step by Step Solution
- Step 1: Write the proportion equation
388,473.42 : 536,054.68 = 286,553.94 : x - Step 2: Convert to fraction form
388,473.42/536,054.68 = 286,553.94/x - Step 3: Cross multiply
388,473.42x = 536,054.68 × 286,553.94 - Step 4: Simplify right side
388,473.42x = 153,608,580,609.44 - Step 5: Solve for x
x = 153,608,580,609.44/388,473.42 - Step 6: Final answer
x = 395,415.94
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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.