Finding the Fourth Proportional to 354,939.80, 532,409.70 and 319,947.80
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Solution
The fourth proportional to 354,939.80, 532,409.70 and 319,947.80 is: 479,921.70
Step by Step Solution
- Step 1: Write the proportion equation
354,939.80 : 532,409.70 = 319,947.80 : x - Step 2: Convert to fraction form
354,939.80/532,409.70 = 319,947.80/x - Step 3: Cross multiply
354,939.80x = 532,409.70 × 319,947.80 - Step 4: Simplify right side
354,939.80x = 170,343,312,213.66 - Step 5: Solve for x
x = 170,343,312,213.66/354,939.80 - Step 6: Final answer
x = 479,921.70
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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.