Finding the Fourth Proportional to 1,512,612.20, 2,268,764.70 and 515,325.80
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Solution
The fourth proportional to 1,512,612.20, 2,268,764.70 and 515,325.80 is: 772,936.37
Step by Step Solution
- Step 1: Write the proportion equation
1,512,612.20 : 2,268,764.70 = 515,325.80 : x - Step 2: Convert to fraction form
1,512,612.20/2,268,764.70 = 515,325.80/x - Step 3: Cross multiply
1,512,612.20x = 2,268,764.70 × 515,325.80 - Step 4: Simplify right side
1,512,612.20x = 1,169,152,984,039.26 - Step 5: Solve for x
x = 1,169,152,984,039.26/1,512,612.20 - Step 6: Final answer
x = 772,936.37
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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.