Finding the Fourth Proportional to 436,418.20, 602,538.42 and 281,438.80
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Solution
The fourth proportional to 436,418.20, 602,538.42 and 281,438.80 is: 388,566.95
Step by Step Solution
- Step 1: Write the proportion equation
436,418.20 : 602,538.42 = 281,438.80 : x - Step 2: Convert to fraction form
436,418.20/602,538.42 = 281,438.80/x - Step 3: Cross multiply
436,418.20x = 602,538.42 × 281,438.80 - Step 4: Simplify right side
436,418.20x = 169,577,689,878.70 - Step 5: Solve for x
x = 169,577,689,878.70/436,418.20 - Step 6: Final answer
x = 388,566.95
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1.5x scale
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.