Finding the Fourth Proportional to 482,859.40, 724,418.70 and 430,630.60
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Solution
The fourth proportional to 482,859.40, 724,418.70 and 430,630.60 is: 646,061.48
Step by Step Solution
- Step 1: Write the proportion equation
482,859.40 : 724,418.70 = 430,630.60 : x - Step 2: Convert to fraction form
482,859.40/724,418.70 = 430,630.60/x - Step 3: Cross multiply
482,859.40x = 724,418.70 × 430,630.60 - Step 4: Simplify right side
482,859.40x = 311,956,859,432.22 - Step 5: Solve for x
x = 311,956,859,432.22/482,859.40 - Step 6: Final answer
x = 646,061.48
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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.