Finding the Fourth Proportional to 736,716.16, 1,105,074.46 and 331,434.99
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Solution
The fourth proportional to 736,716.16, 1,105,074.46 and 331,434.99 is: 497,152.58
Step by Step Solution
- Step 1: Write the proportion equation
736,716.16 : 1,105,074.46 = 331,434.99 : x - Step 2: Convert to fraction form
736,716.16/1,105,074.46 = 331,434.99/x - Step 3: Cross multiply
736,716.16x = 1,105,074.46 × 331,434.99 - Step 4: Simplify right side
736,716.16x = 366,260,343,013.65 - Step 5: Solve for x
x = 366,260,343,013.65/736,716.16 - Step 6: Final answer
x = 497,152.58
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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.