Finding the Fourth Proportional to 657,474.84, 985,388.99 and 353,121.06
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Solution
The fourth proportional to 657,474.84, 985,388.99 and 353,121.06 is: 529,239.43
Step by Step Solution
- Step 1: Write the proportion equation
657,474.84 : 985,388.99 = 353,121.06 : x - Step 2: Convert to fraction form
657,474.84/985,388.99 = 353,121.06/x - Step 3: Cross multiply
657,474.84x = 985,388.99 × 353,121.06 - Step 4: Simplify right side
657,474.84x = 347,961,606,590.73 - Step 5: Solve for x
x = 347,961,606,590.73/657,474.84 - Step 6: Final answer
x = 529,239.43
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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.