Finding the Fourth Proportional to 1,587,309.41, 2,190,512.41 and 862,157.62
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Solution
The fourth proportional to 1,587,309.41, 2,190,512.41 and 862,157.62 is: 1,189,791.33
Step by Step Solution
- Step 1: Write the proportion equation
1,587,309.41 : 2,190,512.41 = 862,157.62 : x - Step 2: Convert to fraction form
1,587,309.41/2,190,512.41 = 862,157.62/x - Step 3: Cross multiply
1,587,309.41x = 2,190,512.41 × 862,157.62 - Step 4: Simplify right side
1,587,309.41x = 1,888,566,971,418.45 - Step 5: Solve for x
x = 1,888,566,971,418.45/1,587,309.41 - Step 6: Final answer
x = 1,189,791.33
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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.