Finding the Fourth Proportional to 1,392,908.31, 2,089,304.09 and 446,258.07
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Solution
The fourth proportional to 1,392,908.31, 2,089,304.09 and 446,258.07 is: 669,368.40
Step by Step Solution
- Step 1: Write the proportion equation
1,392,908.31 : 2,089,304.09 = 446,258.07 : x - Step 2: Convert to fraction form
1,392,908.31/2,089,304.09 = 446,258.07/x - Step 3: Cross multiply
1,392,908.31x = 2,089,304.09 × 446,258.07 - Step 4: Simplify right side
1,392,908.31x = 932,368,808,615.22 - Step 5: Solve for x
x = 932,368,808,615.22/1,392,908.31 - Step 6: Final answer
x = 669,368.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.