Finding the Fourth Proportional to 764,432.70, 1,146,879.45 and 409,616.70
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Solution
The fourth proportional to 764,432.70, 1,146,879.45 and 409,616.70 is: 614,548.51
Step by Step Solution
- Step 1: Write the proportion equation
764,432.70 : 1,146,879.45 = 409,616.70 : x - Step 2: Convert to fraction form
764,432.70/1,146,879.45 = 409,616.70/x - Step 3: Cross multiply
764,432.70x = 1,146,879.45 × 409,616.70 - Step 4: Simplify right side
764,432.70x = 469,780,975,606.82 - Step 5: Solve for x
x = 469,780,975,606.82/764,432.70 - Step 6: Final answer
x = 614,548.51
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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.