Finding the Fourth Proportional to 419,146.79, 578,407.84 and 228,156.08
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Solution
The fourth proportional to 419,146.79, 578,407.84 and 228,156.08 is: 314,847.37
Step by Step Solution
- Step 1: Write the proportion equation
419,146.79 : 578,407.84 = 228,156.08 : x - Step 2: Convert to fraction form
419,146.79/578,407.84 = 228,156.08/x - Step 3: Cross multiply
419,146.79x = 578,407.84 × 228,156.08 - Step 4: Simplify right side
419,146.79x = 131,967,261,953.24 - Step 5: Solve for x
x = 131,967,261,953.24/419,146.79 - Step 6: Final answer
x = 314,847.37
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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.