Finding the Fourth Proportional to 692,163.80, 1,038,245.70 and 186,723.80
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Solution
The fourth proportional to 692,163.80, 1,038,245.70 and 186,723.80 is: 280,085.70
Step by Step Solution
- Step 1: Write the proportion equation
692,163.80 : 1,038,245.70 = 186,723.80 : x - Step 2: Convert to fraction form
692,163.80/1,038,245.70 = 186,723.80/x - Step 3: Cross multiply
692,163.80x = 1,038,245.70 × 186,723.80 - Step 4: Simplify right side
692,163.80x = 193,865,182,437.66 - Step 5: Solve for x
x = 193,865,182,437.66/692,163.80 - Step 6: Final answer
x = 280,085.70
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1.5x scale
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.