Finding the Fourth Proportional to 1,259,815.70, 1,889,723.55 and 460,831.70
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Solution
The fourth proportional to 1,259,815.70, 1,889,723.55 and 460,831.70 is: 691,247.55
Step by Step Solution
- Step 1: Write the proportion equation
1,259,815.70 : 1,889,723.55 = 460,831.70 : x - Step 2: Convert to fraction form
1,259,815.70/1,889,723.55 = 460,831.70/x - Step 3: Cross multiply
1,259,815.70x = 1,889,723.55 × 460,831.70 - Step 4: Simplify right side
1,259,815.70x = 870,844,516,076.54 - Step 5: Solve for x
x = 870,844,516,076.54/1,259,815.70 - Step 6: Final answer
x = 691,247.55
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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.