Finding the Fourth Proportional to 621,998.97, 858,441.05 and 350,119.63
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Solution
The fourth proportional to 621,998.97, 858,441.05 and 350,119.63 is: 483,211.51
Step by Step Solution
- Step 1: Write the proportion equation
621,998.97 : 858,441.05 = 350,119.63 : x - Step 2: Convert to fraction form
621,998.97/858,441.05 = 350,119.63/x - Step 3: Cross multiply
621,998.97x = 858,441.05 × 350,119.63 - Step 4: Simplify right side
621,998.97x = 300,557,062,802.81 - Step 5: Solve for x
x = 300,557,062,802.81/621,998.97 - Step 6: Final answer
x = 483,211.51
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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.