Finding the Fourth Proportional to 548,718.36, 757,188.18 and 306,981.96
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Solution
The fourth proportional to 548,718.36, 757,188.18 and 306,981.96 is: 423,610.96
Step by Step Solution
- Step 1: Write the proportion equation
548,718.36 : 757,188.18 = 306,981.96 : x - Step 2: Convert to fraction form
548,718.36/757,188.18 = 306,981.96/x - Step 3: Cross multiply
548,718.36x = 757,188.18 × 306,981.96 - Step 4: Simplify right side
548,718.36x = 232,443,111,585.23 - Step 5: Solve for x
x = 232,443,111,585.23/548,718.36 - Step 6: Final answer
x = 423,610.96
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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.