Finding the Fourth Proportional to 605,740.20, 908,391.60 and 306,121.20
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Solution
The fourth proportional to 605,740.20, 908,391.60 and 306,121.20 is: 459,071.28
Step by Step Solution
- Step 1: Write the proportion equation
605,740.20 : 908,391.60 = 306,121.20 : x - Step 2: Convert to fraction form
605,740.20/908,391.60 = 306,121.20/x - Step 3: Cross multiply
605,740.20x = 908,391.60 × 306,121.20 - Step 4: Simplify right side
605,740.20x = 278,077,926,661.92 - Step 5: Solve for x
x = 278,077,926,661.92/605,740.20 - Step 6: Final answer
x = 459,071.28
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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.