Finding the Fourth Proportional to 1,587,311.82, 2,190,506.36 and 862,173.68
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Solution
The fourth proportional to 1,587,311.82, 2,190,506.36 and 862,173.68 is: 1,189,808.39
Step by Step Solution
- Step 1: Write the proportion equation
1,587,311.82 : 2,190,506.36 = 862,173.68 : x - Step 2: Convert to fraction form
1,587,311.82/2,190,506.36 = 862,173.68/x - Step 3: Cross multiply
1,587,311.82x = 2,190,506.36 × 862,173.68 - Step 4: Simplify right side
1,587,311.82x = 1,888,596,914,201.20 - Step 5: Solve for x
x = 1,888,596,914,201.20/1,587,311.82 - Step 6: Final answer
x = 1,189,808.39
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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.