Finding the Fourth Proportional to 914,730.12, 1,372,313.16 and 315,696.44
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Solution
The fourth proportional to 914,730.12, 1,372,313.16 and 315,696.44 is: 473,619.89
Step by Step Solution
- Step 1: Write the proportion equation
914,730.12 : 1,372,313.16 = 315,696.44 : x - Step 2: Convert to fraction form
914,730.12/1,372,313.16 = 315,696.44/x - Step 3: Cross multiply
914,730.12x = 1,372,313.16 × 315,696.44 - Step 4: Simplify right side
914,730.12x = 433,234,379,177.15 - Step 5: Solve for x
x = 433,234,379,177.15/914,730.12 - Step 6: Final answer
x = 473,619.89
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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.