Finding the Fourth Proportional to 927,932.16, 1,281,163.44 and 712,687.68
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Solution
The fourth proportional to 927,932.16, 1,281,163.44 and 712,687.68 is: 983,982.92
Step by Step Solution
- Step 1: Write the proportion equation
927,932.16 : 1,281,163.44 = 712,687.68 : x - Step 2: Convert to fraction form
927,932.16/1,281,163.44 = 712,687.68/x - Step 3: Cross multiply
927,932.16x = 1,281,163.44 × 712,687.68 - Step 4: Simplify right side
927,932.16x = 913,069,399,754.42 - Step 5: Solve for x
x = 913,069,399,754.42/927,932.16 - Step 6: Final answer
x = 983,982.92
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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.