Finding the Fourth Proportional to 818,418.79, 1,129,474.70 and 496,142.47
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Solution
The fourth proportional to 818,418.79, 1,129,474.70 and 496,142.47 is: 684,711.02
Step by Step Solution
- Step 1: Write the proportion equation
818,418.79 : 1,129,474.70 = 496,142.47 : x - Step 2: Convert to fraction form
818,418.79/1,129,474.70 = 496,142.47/x - Step 3: Cross multiply
818,418.79x = 1,129,474.70 × 496,142.47 - Step 4: Simplify right side
818,418.79x = 560,380,367,460.51 - Step 5: Solve for x
x = 560,380,367,460.51/818,418.79 - Step 6: Final answer
x = 684,711.02
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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.