Finding the Fourth Proportional to 1,405,743.18, 2,108,596.14 and 340,794.87
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Solution
The fourth proportional to 1,405,743.18, 2,108,596.14 and 340,794.87 is: 511,187.79
Step by Step Solution
- Step 1: Write the proportion equation
1,405,743.18 : 2,108,596.14 = 340,794.87 : x - Step 2: Convert to fraction form
1,405,743.18/2,108,596.14 = 340,794.87/x - Step 3: Cross multiply
1,405,743.18x = 2,108,596.14 × 340,794.87 - Step 4: Simplify right side
1,405,743.18x = 718,598,747,413.80 - Step 5: Solve for x
x = 718,598,747,413.80/1,405,743.18 - Step 6: Final answer
x = 511,187.79
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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.