Finding the Fourth Proportional to 765,831.21, 1,148,746.81 and 204,851.13
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Solution
The fourth proportional to 765,831.21, 1,148,746.81 and 204,851.13 is: 307,276.69
Step by Step Solution
- Step 1: Write the proportion equation
765,831.21 : 1,148,746.81 = 204,851.13 : x - Step 2: Convert to fraction form
765,831.21/1,148,746.81 = 204,851.13/x - Step 3: Cross multiply
765,831.21x = 1,148,746.81 × 204,851.13 - Step 4: Simplify right side
765,831.21x = 235,322,082,112.40 - Step 5: Solve for x
x = 235,322,082,112.40/765,831.21 - Step 6: Final answer
x = 307,276.69
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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.