Finding the Fourth Proportional to 695,380.65, 959,515.67 and 405,039.99
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Solution
The fourth proportional to 695,380.65, 959,515.67 and 405,039.99 is: 558,891.34
Step by Step Solution
- Step 1: Write the proportion equation
695,380.65 : 959,515.67 = 405,039.99 : x - Step 2: Convert to fraction form
695,380.65/959,515.67 = 405,039.99/x - Step 3: Cross multiply
695,380.65x = 959,515.67 × 405,039.99 - Step 4: Simplify right side
695,380.65x = 388,642,221,992.43 - Step 5: Solve for x
x = 388,642,221,992.43/695,380.65 - Step 6: Final answer
x = 558,891.34
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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.