Finding the Fourth Proportional to 1,439,859.63, 1,986,994.44 and 786,486.09
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Solution
The fourth proportional to 1,439,859.63, 1,986,994.44 and 786,486.09 is: 1,085,344.33
Step by Step Solution
- Step 1: Write the proportion equation
1,439,859.63 : 1,986,994.44 = 786,486.09 : x - Step 2: Convert to fraction form
1,439,859.63/1,986,994.44 = 786,486.09/x - Step 3: Cross multiply
1,439,859.63x = 1,986,994.44 × 786,486.09 - Step 4: Simplify right side
1,439,859.63x = 1,562,743,487,967.34 - Step 5: Solve for x
x = 1,562,743,487,967.34/1,439,859.63 - Step 6: Final answer
x = 1,085,344.33
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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.