Finding the Fourth Proportional to 1,028,292.62, 1,542,422.40 and 280,338.62
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Solution
The fourth proportional to 1,028,292.62, 1,542,422.40 and 280,338.62 is: 420,503.42
Step by Step Solution
- Step 1: Write the proportion equation
1,028,292.62 : 1,542,422.40 = 280,338.62 : x - Step 2: Convert to fraction form
1,028,292.62/1,542,422.40 = 280,338.62/x - Step 3: Cross multiply
1,028,292.62x = 1,542,422.40 × 280,338.62 - Step 4: Simplify right side
1,028,292.62x = 432,400,559,360.98 - Step 5: Solve for x
x = 432,400,559,360.98/1,028,292.62 - Step 6: Final answer
x = 420,503.42
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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.