Finding the Fourth Proportional to 828,419.07, 1,242,889.61 and 295,928.31
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Solution
The fourth proportional to 828,419.07, 1,242,889.61 and 295,928.31 is: 443,985.70
Step by Step Solution
- Step 1: Write the proportion equation
828,419.07 : 1,242,889.61 = 295,928.31 : x - Step 2: Convert to fraction form
828,419.07/1,242,889.61 = 295,928.31/x - Step 3: Cross multiply
828,419.07x = 1,242,889.61 × 295,928.31 - Step 4: Simplify right side
828,419.07x = 367,806,220,324.22 - Step 5: Solve for x
x = 367,806,220,324.22/828,419.07 - Step 6: Final answer
x = 443,985.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.