Finding the Fourth Proportional to 695,543.36, 959,457.56 and 405,120.69
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Solution
The fourth proportional to 695,543.36, 959,457.56 and 405,120.69 is: 558,838.07
Step by Step Solution
- Step 1: Write the proportion equation
695,543.36 : 959,457.56 = 405,120.69 : x - Step 2: Convert to fraction form
695,543.36/959,457.56 = 405,120.69/x - Step 3: Cross multiply
695,543.36x = 959,457.56 × 405,120.69 - Step 4: Simplify right side
695,543.36x = 388,696,106,707.31 - Step 5: Solve for x
x = 388,696,106,707.31/695,543.36 - Step 6: Final answer
x = 558,838.07
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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.