Finding the Fourth Proportional to 1,513,991.62, 2,089,238.16 and 868,957.84
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Solution
The fourth proportional to 1,513,991.62, 2,089,238.16 and 868,957.84 is: 1,199,121.48
Step by Step Solution
- Step 1: Write the proportion equation
1,513,991.62 : 2,089,238.16 = 868,957.84 : x - Step 2: Convert to fraction form
1,513,991.62/2,089,238.16 = 868,957.84/x - Step 3: Cross multiply
1,513,991.62x = 2,089,238.16 × 868,957.84 - Step 4: Simplify right side
1,513,991.62x = 1,815,459,878,759.17 - Step 5: Solve for x
x = 1,815,459,878,759.17/1,513,991.62 - Step 6: Final answer
x = 1,199,121.48
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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.