Finding the Fourth Proportional to 859,817.36, 1,186,453.68 and 497,186.48
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Solution
The fourth proportional to 859,817.36, 1,186,453.68 and 497,186.48 is: 686,062.83
Step by Step Solution
- Step 1: Write the proportion equation
859,817.36 : 1,186,453.68 = 497,186.48 : x - Step 2: Convert to fraction form
859,817.36/1,186,453.68 = 497,186.48/x - Step 3: Cross multiply
859,817.36x = 1,186,453.68 × 497,186.48 - Step 4: Simplify right side
859,817.36x = 589,888,728,842.25 - Step 5: Solve for x
x = 589,888,728,842.25/859,817.36 - Step 6: Final answer
x = 686,062.83
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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.