Finding the Fourth Proportional to 718,115.28, 1,077,484.68 and 385,302.48
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Solution
The fourth proportional to 718,115.28, 1,077,484.68 and 385,302.48 is: 578,120.99
Step by Step Solution
- Step 1: Write the proportion equation
718,115.28 : 1,077,484.68 = 385,302.48 : x - Step 2: Convert to fraction form
718,115.28/1,077,484.68 = 385,302.48/x - Step 3: Cross multiply
718,115.28x = 1,077,484.68 × 385,302.48 - Step 4: Simplify right side
718,115.28x = 415,157,519,366.01 - Step 5: Solve for x
x = 415,157,519,366.01/718,115.28 - Step 6: Final answer
x = 578,120.99
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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.