Finding the Fourth Proportional to 419,487.12, 578,897.28 and 228,502.08
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Solution
The fourth proportional to 419,487.12, 578,897.28 and 228,502.08 is: 315,335.62
Step by Step Solution
- Step 1: Write the proportion equation
419,487.12 : 578,897.28 = 228,502.08 : x - Step 2: Convert to fraction form
419,487.12/578,897.28 = 228,502.08/x - Step 3: Cross multiply
419,487.12x = 578,897.28 × 228,502.08 - Step 4: Simplify right side
419,487.12x = 132,279,232,586.34 - Step 5: Solve for x
x = 132,279,232,586.34/419,487.12 - Step 6: Final answer
x = 315,335.62
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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.