Finding the Fourth Proportional to 738,056.20, 1,107,602.70 and 317,633.80
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Solution
The fourth proportional to 738,056.20, 1,107,602.70 and 317,633.80 is: 476,673.80
Step by Step Solution
- Step 1: Write the proportion equation
738,056.20 : 1,107,602.70 = 317,633.80 : x - Step 2: Convert to fraction form
738,056.20/1,107,602.70 = 317,633.80/x - Step 3: Cross multiply
738,056.20x = 1,107,602.70 × 317,633.80 - Step 4: Simplify right side
738,056.20x = 351,812,054,491.26 - Step 5: Solve for x
x = 351,812,054,491.26/738,056.20 - Step 6: Final answer
x = 476,673.80
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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.