Finding the Fourth Proportional to 880,756.20, 1,321,652.70 and 319,717.80
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Solution
The fourth proportional to 880,756.20, 1,321,652.70 and 319,717.80 is: 479,764.88
Step by Step Solution
- Step 1: Write the proportion equation
880,756.20 : 1,321,652.70 = 319,717.80 : x - Step 2: Convert to fraction form
880,756.20/1,321,652.70 = 319,717.80/x - Step 3: Cross multiply
880,756.20x = 1,321,652.70 × 319,717.80 - Step 4: Simplify right side
880,756.20x = 422,555,893,608.06 - Step 5: Solve for x
x = 422,555,893,608.06/880,756.20 - Step 6: Final answer
x = 479,764.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.