Finding the Fourth Proportional to 894,128.96, 1,233,873.36 and 491,720.96
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Solution
The fourth proportional to 894,128.96, 1,233,873.36 and 491,720.96 is: 678,561.39
Step by Step Solution
- Step 1: Write the proportion equation
894,128.96 : 1,233,873.36 = 491,720.96 : x - Step 2: Convert to fraction form
894,128.96/1,233,873.36 = 491,720.96/x - Step 3: Cross multiply
894,128.96x = 1,233,873.36 × 491,720.96 - Step 4: Simplify right side
894,128.96x = 606,721,393,097.63 - Step 5: Solve for x
x = 606,721,393,097.63/894,128.96 - Step 6: Final answer
x = 678,561.39
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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.