Finding the Fourth Proportional to 694,186.42, 957,979.36 and 388,267.98
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Solution
The fourth proportional to 694,186.42, 957,979.36 and 388,267.98 is: 535,810.99
Step by Step Solution
- Step 1: Write the proportion equation
694,186.42 : 957,979.36 = 388,267.98 : x - Step 2: Convert to fraction form
694,186.42/957,979.36 = 388,267.98/x - Step 3: Cross multiply
694,186.42x = 957,979.36 × 388,267.98 - Step 4: Simplify right side
694,186.42x = 371,952,710,988.89 - Step 5: Solve for x
x = 371,952,710,988.89/694,186.42 - Step 6: Final answer
x = 535,810.99
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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.