Finding the Fourth Proportional to 548,719.64, 757,262.48 and 306,987.84
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Solution
The fourth proportional to 548,719.64, 757,262.48 and 306,987.84 is: 423,659.65
Step by Step Solution
- Step 1: Write the proportion equation
548,719.64 : 757,262.48 = 306,987.84 : x - Step 2: Convert to fraction form
548,719.64/757,262.48 = 306,987.84/x - Step 3: Cross multiply
548,719.64x = 757,262.48 × 306,987.84 - Step 4: Simplify right side
548,719.64x = 232,470,373,048.24 - Step 5: Solve for x
x = 232,470,373,048.24/548,719.64 - Step 6: Final answer
x = 423,659.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.