Finding the Fourth Proportional to 746,523.20, 1,118,553.60 and 430,428.80
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Solution
The fourth proportional to 746,523.20, 1,118,553.60 and 430,428.80 is: 644,933.32
Step by Step Solution
- Step 1: Write the proportion equation
746,523.20 : 1,118,553.60 = 430,428.80 : x - Step 2: Convert to fraction form
746,523.20/1,118,553.60 = 430,428.80/x - Step 3: Cross multiply
746,523.20x = 1,118,553.60 × 430,428.80 - Step 4: Simplify right side
746,523.20x = 481,457,683,783.68 - Step 5: Solve for x
x = 481,457,683,783.68/746,523.20 - Step 6: Final answer
x = 644,933.32
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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.