Finding the Fourth Proportional to 518,688.27, 777,845.25 and 219,191.99
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Solution
The fourth proportional to 518,688.27, 777,845.25 and 219,191.99 is: 328,708.89
Step by Step Solution
- Step 1: Write the proportion equation
518,688.27 : 777,845.25 = 219,191.99 : x - Step 2: Convert to fraction form
518,688.27/777,845.25 = 219,191.99/x - Step 3: Cross multiply
518,688.27x = 777,845.25 × 219,191.99 - Step 4: Simplify right side
518,688.27x = 170,497,444,370.32 - Step 5: Solve for x
x = 170,497,444,370.32/518,688.27 - Step 6: Final answer
x = 328,708.89
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.