Finding the Fourth Proportional to 668,124.28, 922,049.22 and 396,353.08
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Solution
The fourth proportional to 668,124.28, 922,049.22 and 396,353.08 is: 546,989.62
Step by Step Solution
- Step 1: Write the proportion equation
668,124.28 : 922,049.22 = 396,353.08 : x - Step 2: Convert to fraction form
668,124.28/922,049.22 = 396,353.08/x - Step 3: Cross multiply
668,124.28x = 922,049.22 × 396,353.08 - Step 4: Simplify right side
668,124.28x = 365,457,048,258.60 - Step 5: Solve for x
x = 365,457,048,258.60/668,124.28 - Step 6: Final answer
x = 546,989.62
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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.