Finding the Fourth Proportional to 718,317.20, 1,076,163.60 and 584,472.80
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Solution
The fourth proportional to 718,317.20, 1,076,163.60 and 584,472.80 is: 875,641.50
Step by Step Solution
- Step 1: Write the proportion equation
718,317.20 : 1,076,163.60 = 584,472.80 : x - Step 2: Convert to fraction form
718,317.20/1,076,163.60 = 584,472.80/x - Step 3: Cross multiply
718,317.20x = 1,076,163.60 × 584,472.80 - Step 4: Simplify right side
718,317.20x = 628,988,352,550.08 - Step 5: Solve for x
x = 628,988,352,550.08/718,317.20 - Step 6: Final answer
x = 875,641.50
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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.