Finding the Fourth Proportional to 3,831,321.06, 5,287,461.30 and 2,112,438.96
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Solution
The fourth proportional to 3,831,321.06, 5,287,461.30 and 2,112,438.96 is: 2,915,297.12
Step by Step Solution
- Step 1: Write the proportion equation
3,831,321.06 : 5,287,461.30 = 2,112,438.96 : x - Step 2: Convert to fraction form
3,831,321.06/5,287,461.30 = 2,112,438.96/x - Step 3: Cross multiply
3,831,321.06x = 5,287,461.30 × 2,112,438.96 - Step 4: Simplify right side
3,831,321.06x = 11,169,439,249,612.25 - Step 5: Solve for x
x = 11,169,439,249,612.25/3,831,321.06 - Step 6: Final answer
x = 2,915,297.12
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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.