Finding the Fourth Proportional to 707,400.75, 976,182.42 and 385,111.99
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Solution
The fourth proportional to 707,400.75, 976,182.42 and 385,111.99 is: 531,437.88
Step by Step Solution
- Step 1: Write the proportion equation
707,400.75 : 976,182.42 = 385,111.99 : x - Step 2: Convert to fraction form
707,400.75/976,182.42 = 385,111.99/x - Step 3: Cross multiply
707,400.75x = 976,182.42 × 385,111.99 - Step 4: Simplify right side
707,400.75x = 375,939,554,369.22 - Step 5: Solve for x
x = 375,939,554,369.22/707,400.75 - Step 6: Final answer
x = 531,437.88
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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.