Finding the Fourth Proportional to 3,148,420.84, 4,721,078.49 and 1,326,453.10
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Solution
The fourth proportional to 3,148,420.84, 4,721,078.49 and 1,326,453.10 is: 1,989,025.46
Step by Step Solution
- Step 1: Write the proportion equation
3,148,420.84 : 4,721,078.49 = 1,326,453.10 : x - Step 2: Convert to fraction form
3,148,420.84/4,721,078.49 = 1,326,453.10/x - Step 3: Cross multiply
3,148,420.84x = 4,721,078.49 × 1,326,453.10 - Step 4: Simplify right side
3,148,420.84x = 6,262,289,198,403.82 - Step 5: Solve for x
x = 6,262,289,198,403.82/3,148,420.84 - Step 6: Final answer
x = 1,989,025.46
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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.