Finding the Fourth Proportional to 1,372,392.36, 1,889,986.50 and 1,235,258.28
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Solution
The fourth proportional to 1,372,392.36, 1,889,986.50 and 1,235,258.28 is: 1,701,132.67
Step by Step Solution
- Step 1: Write the proportion equation
1,372,392.36 : 1,889,986.50 = 1,235,258.28 : x - Step 2: Convert to fraction form
1,372,392.36/1,889,986.50 = 1,235,258.28/x - Step 3: Cross multiply
1,372,392.36x = 1,889,986.50 × 1,235,258.28 - Step 4: Simplify right side
1,372,392.36x = 2,334,621,473,213.22 - Step 5: Solve for x
x = 2,334,621,473,213.22/1,372,392.36 - Step 6: Final answer
x = 1,701,132.67
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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.