Finding the Fourth Proportional to 527,134.21, 727,445.55 and 285,416.95
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Solution
The fourth proportional to 527,134.21, 727,445.55 and 285,416.95 is: 393,875.58
Step by Step Solution
- Step 1: Write the proportion equation
527,134.21 : 727,445.55 = 285,416.95 : x - Step 2: Convert to fraction form
527,134.21/727,445.55 = 285,416.95/x - Step 3: Cross multiply
527,134.21x = 727,445.55 × 285,416.95 - Step 4: Simplify right side
527,134.21x = 207,625,290,172.07 - Step 5: Solve for x
x = 207,625,290,172.07/527,134.21 - Step 6: Final answer
x = 393,875.58
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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.