Finding the Fourth Proportional to 912,078.13, 1,368,117.20 and 247,230.13
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Solution
The fourth proportional to 912,078.13, 1,368,117.20 and 247,230.13 is: 370,845.20
Step by Step Solution
- Step 1: Write the proportion equation
912,078.13 : 1,368,117.20 = 247,230.13 : x - Step 2: Convert to fraction form
912,078.13/1,368,117.20 = 247,230.13/x - Step 3: Cross multiply
912,078.13x = 1,368,117.20 × 247,230.13 - Step 4: Simplify right side
912,078.13x = 338,239,793,211.24 - Step 5: Solve for x
x = 338,239,793,211.24/912,078.13 - Step 6: Final answer
x = 370,845.20
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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.