Finding the Fourth Proportional to 1,108,367.28, 1,528,525.08 and 831,619.44
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Solution
The fourth proportional to 1,108,367.28, 1,528,525.08 and 831,619.44 is: 1,146,868.19
Step by Step Solution
- Step 1: Write the proportion equation
1,108,367.28 : 1,528,525.08 = 831,619.44 : x - Step 2: Convert to fraction form
1,108,367.28/1,528,525.08 = 831,619.44/x - Step 3: Cross multiply
1,108,367.28x = 1,528,525.08 × 831,619.44 - Step 4: Simplify right side
1,108,367.28x = 1,271,151,171,055.56 - Step 5: Solve for x
x = 1,271,151,171,055.56/1,108,367.28 - Step 6: Final answer
x = 1,146,868.19
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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.