Finding the Fourth Proportional to 1,587,627.78, 2,190,945.00 and 862,486.92
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Solution
The fourth proportional to 1,587,627.78, 2,190,945.00 and 862,486.92 is: 1,190,242.09
Step by Step Solution
- Step 1: Write the proportion equation
1,587,627.78 : 2,190,945.00 = 862,486.92 : x - Step 2: Convert to fraction form
1,587,627.78/2,190,945.00 = 862,486.92/x - Step 3: Cross multiply
1,587,627.78x = 2,190,945.00 × 862,486.92 - Step 4: Simplify right side
1,587,627.78x = 1,889,661,408,173.73 - Step 5: Solve for x
x = 1,889,661,408,173.73/1,587,627.78 - Step 6: Final answer
x = 1,190,242.09
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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.