Finding the Fourth Proportional to 622,087.49, 858,620.75 and 407,102.99
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Solution
The fourth proportional to 622,087.49, 858,620.75 and 407,102.99 is: 561,893.75
Step by Step Solution
- Step 1: Write the proportion equation
622,087.49 : 858,620.75 = 407,102.99 : x - Step 2: Convert to fraction form
622,087.49/858,620.75 = 407,102.99/x - Step 3: Cross multiply
622,087.49x = 858,620.75 × 407,102.99 - Step 4: Simplify right side
622,087.49x = 349,547,068,272.42 - Step 5: Solve for x
x = 349,547,068,272.42/622,087.49 - Step 6: Final answer
x = 561,893.75
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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.