Finding the Fourth Proportional to 852,989.28, 1,177,133.28 and 471,007.68
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Solution
The fourth proportional to 852,989.28, 1,177,133.28 and 471,007.68 is: 649,995.06
Step by Step Solution
- Step 1: Write the proportion equation
852,989.28 : 1,177,133.28 = 471,007.68 : x - Step 2: Convert to fraction form
852,989.28/1,177,133.28 = 471,007.68/x - Step 3: Cross multiply
852,989.28x = 1,177,133.28 × 471,007.68 - Step 4: Simplify right side
852,989.28x = 554,438,815,263.59 - Step 5: Solve for x
x = 554,438,815,263.59/852,989.28 - Step 6: Final answer
x = 649,995.06
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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.