Finding the Fourth Proportional to 831,833.40, 1,247,749.79 and 326,632.08
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Solution
The fourth proportional to 831,833.40, 1,247,749.79 and 326,632.08 is: 489,948.00
Step by Step Solution
- Step 1: Write the proportion equation
831,833.40 : 1,247,749.79 = 326,632.08 : x - Step 2: Convert to fraction form
831,833.40/1,247,749.79 = 326,632.08/x - Step 3: Cross multiply
831,833.40x = 1,247,749.79 × 326,632.08 - Step 4: Simplify right side
831,833.40x = 407,555,107,594.10 - Step 5: Solve for x
x = 407,555,107,594.10/831,833.40 - Step 6: Final answer
x = 489,948.00
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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.