Finding the Fourth Proportional to 816,331.40, 1,224,176.70 and 310,623.80
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Solution
The fourth proportional to 816,331.40, 1,224,176.70 and 310,623.80 is: 465,813.78
Step by Step Solution
- Step 1: Write the proportion equation
816,331.40 : 1,224,176.70 = 310,623.80 : x - Step 2: Convert to fraction form
816,331.40/1,224,176.70 = 310,623.80/x - Step 3: Cross multiply
816,331.40x = 1,224,176.70 × 310,623.80 - Step 4: Simplify right side
816,331.40x = 380,258,418,425.46 - Step 5: Solve for x
x = 380,258,418,425.46/816,331.40 - Step 6: Final answer
x = 465,813.78
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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.