Finding the Fourth Proportional to 396,689.40, 595,032.48 and 326,420.28
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Solution
The fourth proportional to 396,689.40, 595,032.48 and 326,420.28 is: 489,629.09
Step by Step Solution
- Step 1: Write the proportion equation
396,689.40 : 595,032.48 = 326,420.28 : x - Step 2: Convert to fraction form
396,689.40/595,032.48 = 326,420.28/x - Step 3: Cross multiply
396,689.40x = 595,032.48 × 326,420.28 - Step 4: Simplify right side
396,689.40x = 194,230,668,730.69 - Step 5: Solve for x
x = 194,230,668,730.69/396,689.40 - Step 6: Final answer
x = 489,629.09
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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.