Finding the Fourth Proportional to 527,175.20, 727,455.48 and 312,278.96
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Solution
The fourth proportional to 527,175.20, 727,455.48 and 312,278.96 is: 430,917.54
Step by Step Solution
- Step 1: Write the proportion equation
527,175.20 : 727,455.48 = 312,278.96 : x - Step 2: Convert to fraction form
527,175.20/727,455.48 = 312,278.96/x - Step 3: Cross multiply
527,175.20x = 727,455.48 × 312,278.96 - Step 4: Simplify right side
527,175.20x = 227,169,040,740.70 - Step 5: Solve for x
x = 227,169,040,740.70/527,175.20 - Step 6: Final answer
x = 430,917.54
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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.