Finding the Fourth Proportional to 1,587,175.23, 2,190,317.86 and 862,037.11
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Solution
The fourth proportional to 1,587,175.23, 2,190,317.86 and 862,037.11 is: 1,189,619.92
Step by Step Solution
- Step 1: Write the proportion equation
1,587,175.23 : 2,190,317.86 = 862,037.11 : x - Step 2: Convert to fraction form
1,587,175.23/2,190,317.86 = 862,037.11/x - Step 3: Cross multiply
1,587,175.23x = 2,190,317.86 × 862,037.11 - Step 4: Simplify right side
1,587,175.23x = 1,888,135,278,015.78 - Step 5: Solve for x
x = 1,888,135,278,015.78/1,587,175.23 - Step 6: Final answer
x = 1,189,619.92
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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.