Finding the Fourth Proportional to 527,104.40, 727,403.12 and 285,386.94
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Solution
The fourth proportional to 527,104.40, 727,403.12 and 285,386.94 is: 393,833.46
Step by Step Solution
- Step 1: Write the proportion equation
527,104.40 : 727,403.12 = 285,386.94 : x - Step 2: Convert to fraction form
527,104.40/727,403.12 = 285,386.94/x - Step 3: Cross multiply
527,104.40x = 727,403.12 × 285,386.94 - Step 4: Simplify right side
527,104.40x = 207,591,350,563.25 - Step 5: Solve for x
x = 207,591,350,563.25/527,104.40 - Step 6: Final answer
x = 393,833.46
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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.