Finding the Fourth Proportional to 912,124.40, 1,368,186.60 and 576,201.20
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Solution
The fourth proportional to 912,124.40, 1,368,186.60 and 576,201.20 is: 864,301.80
Step by Step Solution
- Step 1: Write the proportion equation
912,124.40 : 1,368,186.60 = 576,201.20 : x - Step 2: Convert to fraction form
912,124.40/1,368,186.60 = 576,201.20/x - Step 3: Cross multiply
912,124.40x = 1,368,186.60 × 576,201.20 - Step 4: Simplify right side
912,124.40x = 788,350,760,743.92 - Step 5: Solve for x
x = 788,350,760,743.92/912,124.40 - Step 6: Final answer
x = 864,301.80
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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.