Finding the Fourth Proportional to 527,222.21, 727,567.05 and 285,505.05
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Solution
The fourth proportional to 527,222.21, 727,567.05 and 285,505.05 is: 393,997.19
Step by Step Solution
- Step 1: Write the proportion equation
527,222.21 : 727,567.05 = 285,505.05 : x - Step 2: Convert to fraction form
527,222.21/727,567.05 = 285,505.05/x - Step 3: Cross multiply
527,222.21x = 727,567.05 × 285,505.05 - Step 4: Simplify right side
527,222.21x = 207,724,066,988.60 - Step 5: Solve for x
x = 207,724,066,988.60/527,222.21 - Step 6: Final answer
x = 393,997.19
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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.