Finding the Fourth Proportional to 1,513,990.62, 2,089,236.78 and 868,956.84
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Solution
The fourth proportional to 1,513,990.62, 2,089,236.78 and 868,956.84 is: 1,199,120.10
Step by Step Solution
- Step 1: Write the proportion equation
1,513,990.62 : 2,089,236.78 = 868,956.84 : x - Step 2: Convert to fraction form
1,513,990.62/2,089,236.78 = 868,956.84/x - Step 3: Cross multiply
1,513,990.62x = 2,089,236.78 × 868,956.84 - Step 4: Simplify right side
1,513,990.62x = 1,815,456,590,360.58 - Step 5: Solve for x
x = 1,815,456,590,360.58/1,513,990.62 - Step 6: Final answer
x = 1,199,120.10
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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.