Finding the Fourth Proportional to 527,039.41, 727,316.70 and 285,321.99
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Solution
The fourth proportional to 527,039.41, 727,316.70 and 285,321.99 is: 393,745.60
Step by Step Solution
- Step 1: Write the proportion equation
527,039.41 : 727,316.70 = 285,321.99 : x - Step 2: Convert to fraction form
527,039.41/727,316.70 = 285,321.99/x - Step 3: Cross multiply
527,039.41x = 727,316.70 × 285,321.99 - Step 4: Simplify right side
527,039.41x = 207,519,448,204.23 - Step 5: Solve for x
x = 207,519,448,204.23/527,039.41 - Step 6: Final answer
x = 393,745.60
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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.