Finding the Fourth Proportional to 521,478.44, 782,339.70 and 161,630.48
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Solution
The fourth proportional to 521,478.44, 782,339.70 and 161,630.48 is: 242,483.55
Step by Step Solution
- Step 1: Write the proportion equation
521,478.44 : 782,339.70 = 161,630.48 : x - Step 2: Convert to fraction form
521,478.44/782,339.70 = 161,630.48/x - Step 3: Cross multiply
521,478.44x = 782,339.70 × 161,630.48 - Step 4: Simplify right side
521,478.44x = 126,449,941,840.17 - Step 5: Solve for x
x = 126,449,941,840.17/521,478.44 - Step 6: Final answer
x = 242,483.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.