Finding the Fourth Proportional to 692,311.98, 1,038,286.98 and 205,863.14
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Solution
The fourth proportional to 692,311.98, 1,038,286.98 and 205,863.14 is: 308,740.88
Step by Step Solution
- Step 1: Write the proportion equation
692,311.98 : 1,038,286.98 = 205,863.14 : x - Step 2: Convert to fraction form
692,311.98/1,038,286.98 = 205,863.14/x - Step 3: Cross multiply
692,311.98x = 1,038,286.98 × 205,863.14 - Step 4: Simplify right side
692,311.98x = 213,745,012,732.48 - Step 5: Solve for x
x = 213,745,012,732.48/692,311.98 - Step 6: Final answer
x = 308,740.88
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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.