Finding the Fourth Proportional to 4,831,873.58, 7,247,811.81 and 1,420,160.78
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Solution
The fourth proportional to 4,831,873.58, 7,247,811.81 and 1,420,160.78 is: 2,130,241.59
Step by Step Solution
- Step 1: Write the proportion equation
4,831,873.58 : 7,247,811.81 = 1,420,160.78 : x - Step 2: Convert to fraction form
4,831,873.58/7,247,811.81 = 1,420,160.78/x - Step 3: Cross multiply
4,831,873.58x = 7,247,811.81 × 1,420,160.78 - Step 4: Simplify right side
4,831,873.58x = 10,293,058,073,382.81 - Step 5: Solve for x
x = 10,293,058,073,382.81/4,831,873.58 - Step 6: Final answer
x = 2,130,241.59
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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.