Finding the Fourth Proportional to 527,057.46, 727,344.99 and 285,345.09
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Solution
The fourth proportional to 527,057.46, 727,344.99 and 285,345.09 is: 393,779.31
Step by Step Solution
- Step 1: Write the proportion equation
527,057.46 : 727,344.99 = 285,345.09 : x - Step 2: Convert to fraction form
527,057.46/727,344.99 = 285,345.09/x - Step 3: Cross multiply
527,057.46x = 727,344.99 × 285,345.09 - Step 4: Simplify right side
527,057.46x = 207,544,321,632.60 - Step 5: Solve for x
x = 207,544,321,632.60/527,057.46 - Step 6: Final answer
x = 393,779.31
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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.