Finding the Fourth Proportional to 912,311.76, 1,258,968.06 and 504,403.08
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Solution
The fourth proportional to 912,311.76, 1,258,968.06 and 504,403.08 is: 696,063.99
Step by Step Solution
- Step 1: Write the proportion equation
912,311.76 : 1,258,968.06 = 504,403.08 : x - Step 2: Convert to fraction form
912,311.76/1,258,968.06 = 504,403.08/x - Step 3: Cross multiply
912,311.76x = 1,258,968.06 × 504,403.08 - Step 4: Simplify right side
912,311.76x = 635,027,367,085.63 - Step 5: Solve for x
x = 635,027,367,085.63/912,311.76 - Step 6: Final answer
x = 696,063.99
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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.