Finding the Fourth Proportional to 852,979.84, 1,177,112.16 and 471,007.36
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Solution
The fourth proportional to 852,979.84, 1,177,112.16 and 471,007.36 is: 649,990.15
Step by Step Solution
- Step 1: Write the proportion equation
852,979.84 : 1,177,112.16 = 471,007.36 : x - Step 2: Convert to fraction form
852,979.84/1,177,112.16 = 471,007.36/x - Step 3: Cross multiply
852,979.84x = 1,177,112.16 × 471,007.36 - Step 4: Simplify right side
852,979.84x = 554,428,490,905.50 - Step 5: Solve for x
x = 554,428,490,905.50/852,979.84 - Step 6: Final answer
x = 649,990.15
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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.