Finding the Fourth Proportional to 887,028.60, 1,330,542.90 and 413,761.80
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Solution
The fourth proportional to 887,028.60, 1,330,542.90 and 413,761.80 is: 620,642.70
Step by Step Solution
- Step 1: Write the proportion equation
887,028.60 : 1,330,542.90 = 413,761.80 : x - Step 2: Convert to fraction form
887,028.60/1,330,542.90 = 413,761.80/x - Step 3: Cross multiply
887,028.60x = 1,330,542.90 × 413,761.80 - Step 4: Simplify right side
887,028.60x = 550,527,825,281.22 - Step 5: Solve for x
x = 550,527,825,281.22/887,028.60 - Step 6: Final answer
x = 620,642.70
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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.