Finding the Fourth Proportional to 1,587,206.82, 2,190,371.58 and 862,055.09
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Solution
The fourth proportional to 1,587,206.82, 2,190,371.58 and 862,055.09 is: 1,189,650.23
Step by Step Solution
- Step 1: Write the proportion equation
1,587,206.82 : 2,190,371.58 = 862,055.09 : x - Step 2: Convert to fraction form
1,587,206.82/2,190,371.58 = 862,055.09/x - Step 3: Cross multiply
1,587,206.82x = 2,190,371.58 × 862,055.09 - Step 4: Simplify right side
1,587,206.82x = 1,888,220,958,578.48 - Step 5: Solve for x
x = 1,888,220,958,578.48/1,587,206.82 - Step 6: Final answer
x = 1,189,650.23
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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.