Finding the Fourth Proportional to 419,076.19, 578,325.11 and 228,090.95
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Solution
The fourth proportional to 419,076.19, 578,325.11 and 228,090.95 is: 314,765.49
Step by Step Solution
- Step 1: Write the proportion equation
419,076.19 : 578,325.11 = 228,090.95 : x - Step 2: Convert to fraction form
419,076.19/578,325.11 = 228,090.95/x - Step 3: Cross multiply
419,076.19x = 578,325.11 × 228,090.95 - Step 4: Simplify right side
419,076.19x = 131,910,723,748.76 - Step 5: Solve for x
x = 131,910,723,748.76/419,076.19 - Step 6: Final answer
x = 314,765.49
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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.