Finding the Fourth Proportional to 501,643.68, 692,241.84 and 286,755.36
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Solution
The fourth proportional to 501,643.68, 692,241.84 and 286,755.36 is: 395,707.28
Step by Step Solution
- Step 1: Write the proportion equation
501,643.68 : 692,241.84 = 286,755.36 : x - Step 2: Convert to fraction form
501,643.68/692,241.84 = 286,755.36/x - Step 3: Cross multiply
501,643.68x = 692,241.84 × 286,755.36 - Step 4: Simplify right side
501,643.68x = 198,504,058,036.26 - Step 5: Solve for x
x = 198,504,058,036.26/501,643.68 - Step 6: Final answer
x = 395,707.28
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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.