Finding the Fourth Proportional to 457,390.14, 685,628.47 and 305,714.97
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Solution
The fourth proportional to 457,390.14, 685,628.47 and 305,714.97 is: 458,267.17
Step by Step Solution
- Step 1: Write the proportion equation
457,390.14 : 685,628.47 = 305,714.97 : x - Step 2: Convert to fraction form
457,390.14/685,628.47 = 305,714.97/x - Step 3: Cross multiply
457,390.14x = 685,628.47 × 305,714.97 - Step 4: Simplify right side
457,390.14x = 209,606,887,137.20 - Step 5: Solve for x
x = 209,606,887,137.20/457,390.14 - Step 6: Final answer
x = 458,267.17
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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.