Finding the Fourth Proportional to 482,756.80, 724,135.20 and 306,047.20
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Solution
The fourth proportional to 482,756.80, 724,135.20 and 306,047.20 is: 459,070.80
Step by Step Solution
- Step 1: Write the proportion equation
482,756.80 : 724,135.20 = 306,047.20 : x - Step 2: Convert to fraction form
482,756.80/724,135.20 = 306,047.20/x - Step 3: Cross multiply
482,756.80x = 724,135.20 × 306,047.20 - Step 4: Simplify right side
482,756.80x = 221,619,550,381.44 - Step 5: Solve for x
x = 221,619,550,381.44/482,756.80 - Step 6: Final answer
x = 459,070.80
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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.