Finding the Fourth Proportional to 846,534.56, 1,268,991.84 and 313,913.12
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Solution
The fourth proportional to 846,534.56, 1,268,991.84 and 313,913.12 is: 470,569.31
Step by Step Solution
- Step 1: Write the proportion equation
846,534.56 : 1,268,991.84 = 313,913.12 : x - Step 2: Convert to fraction form
846,534.56/1,268,991.84 = 313,913.12/x - Step 3: Cross multiply
846,534.56x = 1,268,991.84 × 313,913.12 - Step 4: Simplify right side
846,534.56x = 398,353,187,748.94 - Step 5: Solve for x
x = 398,353,187,748.94/846,534.56 - Step 6: Final answer
x = 470,569.31
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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.