Finding the Fourth Proportional to 816,409.48, 1,126,668.18 and 494,177.80
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Solution
The fourth proportional to 816,409.48, 1,126,668.18 and 494,177.80 is: 681,979.35
Step by Step Solution
- Step 1: Write the proportion equation
816,409.48 : 1,126,668.18 = 494,177.80 : x - Step 2: Convert to fraction form
816,409.48/1,126,668.18 = 494,177.80/x - Step 3: Cross multiply
816,409.48x = 1,126,668.18 × 494,177.80 - Step 4: Simplify right side
816,409.48x = 556,774,402,522.40 - Step 5: Solve for x
x = 556,774,402,522.40/816,409.48 - Step 6: Final answer
x = 681,979.35
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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.