Finding the Fourth Proportional to 762,517.69, 1,142,978.48 and 256,903.99
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Solution
The fourth proportional to 762,517.69, 1,142,978.48 and 256,903.99 is: 385,087.11
Step by Step Solution
- Step 1: Write the proportion equation
762,517.69 : 1,142,978.48 = 256,903.99 : x - Step 2: Convert to fraction form
762,517.69/1,142,978.48 = 256,903.99/x - Step 3: Cross multiply
762,517.69x = 1,142,978.48 × 256,903.99 - Step 4: Simplify right side
762,517.69x = 293,635,730,711.62 - Step 5: Solve for x
x = 293,635,730,711.62/762,517.69 - Step 6: Final answer
x = 385,087.11
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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.