Finding the Fourth Proportional to 522,341.80, 720,821.38 and 304,591.08
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Solution
The fourth proportional to 522,341.80, 720,821.38 and 304,591.08 is: 420,329.68
Step by Step Solution
- Step 1: Write the proportion equation
522,341.80 : 720,821.38 = 304,591.08 : x - Step 2: Convert to fraction form
522,341.80/720,821.38 = 304,591.08/x - Step 3: Cross multiply
522,341.80x = 720,821.38 × 304,591.08 - Step 4: Simplify right side
522,341.80x = 219,555,762,621.29 - Step 5: Solve for x
x = 219,555,762,621.29/522,341.80 - Step 6: Final answer
x = 420,329.68
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.