Finding the Fourth Proportional to 831,117.09, 1,146,892.15 and 482,230.56
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Solution
The fourth proportional to 831,117.09, 1,146,892.15 and 482,230.56 is: 665,449.49
Step by Step Solution
- Step 1: Write the proportion equation
831,117.09 : 1,146,892.15 = 482,230.56 : x - Step 2: Convert to fraction form
831,117.09/1,146,892.15 = 482,230.56/x - Step 3: Cross multiply
831,117.09x = 1,146,892.15 × 482,230.56 - Step 4: Simplify right side
831,117.09x = 553,066,443,754.10 - Step 5: Solve for x
x = 553,066,443,754.10/831,117.09 - Step 6: Final answer
x = 665,449.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.