Finding the Fourth Proportional to 407,777.28, 562,739.20 and 228,925.44
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Solution
The fourth proportional to 407,777.28, 562,739.20 and 228,925.44 is: 315,920.79
Step by Step Solution
- Step 1: Write the proportion equation
407,777.28 : 562,739.20 = 228,925.44 : x - Step 2: Convert to fraction form
407,777.28/562,739.20 = 228,925.44/x - Step 3: Cross multiply
407,777.28x = 562,739.20 × 228,925.44 - Step 4: Simplify right side
407,777.28x = 128,825,318,965.25 - Step 5: Solve for x
x = 128,825,318,965.25/407,777.28 - Step 6: Final answer
x = 315,920.79
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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.