Finding the Fourth Proportional to 527,113.76, 727,370.13 and 312,219.14
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Solution
The fourth proportional to 527,113.76, 727,370.13 and 312,219.14 is: 430,834.66
Step by Step Solution
- Step 1: Write the proportion equation
527,113.76 : 727,370.13 = 312,219.14 : x - Step 2: Convert to fraction form
527,113.76/727,370.13 = 312,219.14/x - Step 3: Cross multiply
527,113.76x = 727,370.13 × 312,219.14 - Step 4: Simplify right side
527,113.76x = 227,098,876,450.29 - Step 5: Solve for x
x = 227,098,876,450.29/527,113.76 - Step 6: Final answer
x = 430,834.66
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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.