Finding the Fourth Proportional to 695,892.63, 960,316.16 and 405,486.21
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Solution
The fourth proportional to 695,892.63, 960,316.16 and 405,486.21 is: 559,561.84
Step by Step Solution
- Step 1: Write the proportion equation
695,892.63 : 960,316.16 = 405,486.21 : x - Step 2: Convert to fraction form
695,892.63/960,316.16 = 405,486.21/x - Step 3: Cross multiply
695,892.63x = 960,316.16 × 405,486.21 - Step 4: Simplify right side
695,892.63x = 389,394,958,092.72 - Step 5: Solve for x
x = 389,394,958,092.72/695,892.63 - Step 6: Final answer
x = 559,561.84
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1.5x scale
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.