Finding the Fourth Proportional to 672,920.80, 1,008,459.60 and 548,504.80
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Solution
The fourth proportional to 672,920.80, 1,008,459.60 and 548,504.80 is: 822,005.99
Step by Step Solution
- Step 1: Write the proportion equation
672,920.80 : 1,008,459.60 = 548,504.80 : x - Step 2: Convert to fraction form
672,920.80/1,008,459.60 = 548,504.80/x - Step 3: Cross multiply
672,920.80x = 1,008,459.60 × 548,504.80 - Step 4: Simplify right side
672,920.80x = 553,144,931,206.08 - Step 5: Solve for x
x = 553,144,931,206.08/672,920.80 - Step 6: Final answer
x = 822,005.99
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1.5x scale
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.