Finding the Fourth Proportional to 419,723.76, 579,201.96 and 228,733.08
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Solution
The fourth proportional to 419,723.76, 579,201.96 and 228,733.08 is: 315,642.48
Step by Step Solution
- Step 1: Write the proportion equation
419,723.76 : 579,201.96 = 228,733.08 : x - Step 2: Convert to fraction form
419,723.76/579,201.96 = 228,733.08/x - Step 3: Cross multiply
419,723.76x = 579,201.96 × 228,733.08 - Step 4: Simplify right side
419,723.76x = 132,482,648,252.84 - Step 5: Solve for x
x = 132,482,648,252.84/419,723.76 - Step 6: Final answer
x = 315,642.48
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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.