Finding the Fourth Proportional to 703,644.60, 1,055,134.26 and 254,278.20
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Solution
The fourth proportional to 703,644.60, 1,055,134.26 and 254,278.20 is: 381,297.09
Step by Step Solution
- Step 1: Write the proportion equation
703,644.60 : 1,055,134.26 = 254,278.20 : x - Step 2: Convert to fraction form
703,644.60/1,055,134.26 = 254,278.20/x - Step 3: Cross multiply
703,644.60x = 1,055,134.26 × 254,278.20 - Step 4: Simplify right side
703,644.60x = 268,297,640,391.13 - Step 5: Solve for x
x = 268,297,640,391.13/703,644.60 - Step 6: Final answer
x = 381,297.09
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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.