Finding the Fourth Proportional to 436,948.68, 655,458.39 and 121,405.62
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Solution
The fourth proportional to 436,948.68, 655,458.39 and 121,405.62 is: 182,118.26
Step by Step Solution
- Step 1: Write the proportion equation
436,948.68 : 655,458.39 = 121,405.62 : x - Step 2: Convert to fraction form
436,948.68/655,458.39 = 121,405.62/x - Step 3: Cross multiply
436,948.68x = 655,458.39 × 121,405.62 - Step 4: Simplify right side
436,948.68x = 79,576,332,222.15 - Step 5: Solve for x
x = 79,576,332,222.15/436,948.68 - Step 6: Final answer
x = 182,118.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.