Finding the Fourth Proportional to 698,918.22, 1,048,378.68 and 193,480.62
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Solution
The fourth proportional to 698,918.22, 1,048,378.68 and 193,480.62 is: 290,221.30
Step by Step Solution
- Step 1: Write the proportion equation
698,918.22 : 1,048,378.68 = 193,480.62 : x - Step 2: Convert to fraction form
698,918.22/1,048,378.68 = 193,480.62/x - Step 3: Cross multiply
698,918.22x = 1,048,378.68 × 193,480.62 - Step 4: Simplify right side
698,918.22x = 202,840,957,001.18 - Step 5: Solve for x
x = 202,840,957,001.18/698,918.22 - Step 6: Final answer
x = 290,221.30
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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.