Finding the Fourth Proportional to 527,190.09, 727,525.77 and 285,472.68
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Solution
The fourth proportional to 527,190.09, 727,525.77 and 285,472.68 is: 393,954.16
Step by Step Solution
- Step 1: Write the proportion equation
527,190.09 : 727,525.77 = 285,472.68 : x - Step 2: Convert to fraction form
527,190.09/727,525.77 = 285,472.68/x - Step 3: Cross multiply
527,190.09x = 727,525.77 × 285,472.68 - Step 4: Simplify right side
527,190.09x = 207,688,731,330.96 - Step 5: Solve for x
x = 207,688,731,330.96/527,190.09 - Step 6: Final answer
x = 393,954.16
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1.5x scale
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.