Finding the Fourth Proportional to 527,221.21, 727,565.67 and 285,504.05
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Solution
The fourth proportional to 527,221.21, 727,565.67 and 285,504.05 is: 393,995.80
Step by Step Solution
- Step 1: Write the proportion equation
527,221.21 : 727,565.67 = 285,504.05 : x - Step 2: Convert to fraction form
527,221.21/727,565.67 = 285,504.05/x - Step 3: Cross multiply
527,221.21x = 727,565.67 × 285,504.05 - Step 4: Simplify right side
527,221.21x = 207,722,940,360.62 - Step 5: Solve for x
x = 207,722,940,360.62/527,221.21 - Step 6: Final answer
x = 393,995.80
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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.