Finding the Fourth Proportional to 638,831.14, 958,378.96 and 259,751.92
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Solution
The fourth proportional to 638,831.14, 958,378.96 and 259,751.92 is: 389,681.65
Step by Step Solution
- Step 1: Write the proportion equation
638,831.14 : 958,378.96 = 259,751.92 : x - Step 2: Convert to fraction form
638,831.14/958,378.96 = 259,751.92/x - Step 3: Cross multiply
638,831.14x = 958,378.96 × 259,751.92 - Step 4: Simplify right side
638,831.14x = 248,940,774,947.60 - Step 5: Solve for x
x = 248,940,774,947.60/638,831.14 - Step 6: Final answer
x = 389,681.65
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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.