Finding the Fourth Proportional to 419,212.44, 578,525.28 and 228,229.08
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Solution
The fourth proportional to 419,212.44, 578,525.28 and 228,229.08 is: 314,962.72
Step by Step Solution
- Step 1: Write the proportion equation
419,212.44 : 578,525.28 = 228,229.08 : x - Step 2: Convert to fraction form
419,212.44/578,525.28 = 228,229.08/x - Step 3: Cross multiply
419,212.44x = 578,525.28 × 228,229.08 - Step 4: Simplify right side
419,212.44x = 132,036,292,411.14 - Step 5: Solve for x
x = 132,036,292,411.14/419,212.44 - Step 6: Final answer
x = 314,962.72
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1.5x scale
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.