Finding the Fourth Proportional to 697.08, 1,045.26 and 312
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Solution
The fourth proportional to 697.08, 1,045.26 and 312 is: 467.84
Step by Step Solution
- Step 1: Write the proportion equation
697.08 : 1,045.26 = 312 : x - Step 2: Convert to fraction form
697.08/1,045.26 = 312/x - Step 3: Cross multiply
697.08x = 1,045.26 × 312 - Step 4: Simplify right side
697.08x = 326,121.12 - Step 5: Solve for x
x = 326,121.12/697.08 - Step 6: Final answer
x = 467.84
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.