Finding the Fourth Proportional to 534,990.87, 738,098.28 and 305,382.57
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Solution
The fourth proportional to 534,990.87, 738,098.28 and 305,382.57 is: 421,319.99
Step by Step Solution
- Step 1: Write the proportion equation
534,990.87 : 738,098.28 = 305,382.57 : x - Step 2: Convert to fraction form
534,990.87/738,098.28 = 305,382.57/x - Step 3: Cross multiply
534,990.87x = 738,098.28 × 305,382.57 - Step 4: Simplify right side
534,990.87x = 225,402,349,658.98 - Step 5: Solve for x
x = 225,402,349,658.98/534,990.87 - Step 6: Final answer
x = 421,319.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.