Finding the Fourth Proportional to 2,790,745.30, 4,186,117.95 and 689,497.30
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Solution
The fourth proportional to 2,790,745.30, 4,186,117.95 and 689,497.30 is: 1,034,245.95
Step by Step Solution
- Step 1: Write the proportion equation
2,790,745.30 : 4,186,117.95 = 689,497.30 : x - Step 2: Convert to fraction form
2,790,745.30/4,186,117.95 = 689,497.30/x - Step 3: Cross multiply
2,790,745.30x = 4,186,117.95 × 689,497.30 - Step 4: Simplify right side
2,790,745.30x = 2,886,317,024,006.54 - Step 5: Solve for x
x = 2,886,317,024,006.54/2,790,745.30 - Step 6: Final answer
x = 1,034,245.95
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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.