Finding the Fourth Proportional to 1,943,831.36, 2,915,766.24 and 681,689.28
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Solution
The fourth proportional to 1,943,831.36, 2,915,766.24 and 681,689.28 is: 1,022,540.65
Step by Step Solution
- Step 1: Write the proportion equation
1,943,831.36 : 2,915,766.24 = 681,689.28 : x - Step 2: Convert to fraction form
1,943,831.36/2,915,766.24 = 681,689.28/x - Step 3: Cross multiply
1,943,831.36x = 2,915,766.24 × 681,689.28 - Step 4: Simplify right side
1,943,831.36x = 1,987,646,588,793.91 - Step 5: Solve for x
x = 1,987,646,588,793.91/1,943,831.36 - Step 6: Final answer
x = 1,022,540.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.