Finding the Fourth Proportional to 912,258.09, 1,258,913.02 and 509,850.09
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Solution
The fourth proportional to 912,258.09, 1,258,913.02 and 509,850.09 is: 703,591.37
Step by Step Solution
- Step 1: Write the proportion equation
912,258.09 : 1,258,913.02 = 509,850.09 : x - Step 2: Convert to fraction form
912,258.09/1,258,913.02 = 509,850.09/x - Step 3: Cross multiply
912,258.09x = 1,258,913.02 × 509,850.09 - Step 4: Simplify right side
912,258.09x = 641,856,916,549.17 - Step 5: Solve for x
x = 641,856,916,549.17/912,258.09 - Step 6: Final answer
x = 703,591.37
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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.