Finding the Fourth Proportional to 1,816,865.63, 2,507,331.36 and 1,042,638.11
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Solution
The fourth proportional to 1,816,865.63, 2,507,331.36 and 1,042,638.11 is: 1,438,873.18
Step by Step Solution
- Step 1: Write the proportion equation
1,816,865.63 : 2,507,331.36 = 1,042,638.11 : x - Step 2: Convert to fraction form
1,816,865.63/2,507,331.36 = 1,042,638.11/x - Step 3: Cross multiply
1,816,865.63x = 2,507,331.36 × 1,042,638.11 - Step 4: Simplify right side
1,816,865.63x = 2,614,239,230,334.13 - Step 5: Solve for x
x = 2,614,239,230,334.13/1,816,865.63 - Step 6: Final answer
x = 1,438,873.18
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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.