Finding the Fourth Proportional to 720,347.49, 1,080,482.28 and 365,352.30
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Solution
The fourth proportional to 720,347.49, 1,080,482.28 and 365,352.30 is: 548,008.69
Step by Step Solution
- Step 1: Write the proportion equation
720,347.49 : 1,080,482.28 = 365,352.30 : x - Step 2: Convert to fraction form
720,347.49/1,080,482.28 = 365,352.30/x - Step 3: Cross multiply
720,347.49x = 1,080,482.28 × 365,352.30 - Step 4: Simplify right side
720,347.49x = 394,756,686,107.24 - Step 5: Solve for x
x = 394,756,686,107.24/720,347.49 - Step 6: Final answer
x = 548,008.69
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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.