Finding the Fourth Proportional to 1,278,790.54, 1,764,745.58 and 705,831.17
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Solution
The fourth proportional to 1,278,790.54, 1,764,745.58 and 705,831.17 is: 974,055.09
Step by Step Solution
- Step 1: Write the proportion equation
1,278,790.54 : 1,764,745.58 = 705,831.17 : x - Step 2: Convert to fraction form
1,278,790.54/1,764,745.58 = 705,831.17/x - Step 3: Cross multiply
1,278,790.54x = 1,764,745.58 × 705,831.17 - Step 4: Simplify right side
1,278,790.54x = 1,245,612,430,424.58 - Step 5: Solve for x
x = 1,245,612,430,424.58/1,278,790.54 - Step 6: Final answer
x = 974,055.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.