Finding the Fourth Proportional to 827.08, 1,141.36 and 454
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Solution
The fourth proportional to 827.08, 1,141.36 and 454 is: 626.51
Step by Step Solution
- Step 1: Write the proportion equation
827.08 : 1,141.36 = 454 : x - Step 2: Convert to fraction form
827.08/1,141.36 = 454/x - Step 3: Cross multiply
827.08x = 1,141.36 × 454 - Step 4: Simplify right side
827.08x = 518,177.44 - Step 5: Solve for x
x = 518,177.44/827.08 - Step 6: Final answer
x = 626.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.