Finding the Fourth Proportional to 419,765.76, 578,949.12 and 268,876.80
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Solution
The fourth proportional to 419,765.76, 578,949.12 and 268,876.80 is: 370,840.12
Step by Step Solution
- Step 1: Write the proportion equation
419,765.76 : 578,949.12 = 268,876.80 : x - Step 2: Convert to fraction form
419,765.76/578,949.12 = 268,876.80/x - Step 3: Cross multiply
419,765.76x = 578,949.12 × 268,876.80 - Step 4: Simplify right side
419,765.76x = 155,665,986,748.42 - Step 5: Solve for x
x = 155,665,986,748.42/419,765.76 - Step 6: Final answer
x = 370,840.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.