Finding the Fourth Proportional to 831,011.75, 1,146,887.34 and 482,228.99
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Solution
The fourth proportional to 831,011.75, 1,146,887.34 and 482,228.99 is: 665,528.89
Step by Step Solution
- Step 1: Write the proportion equation
831,011.75 : 1,146,887.34 = 482,228.99 : x - Step 2: Convert to fraction form
831,011.75/1,146,887.34 = 482,228.99/x - Step 3: Cross multiply
831,011.75x = 1,146,887.34 × 482,228.99 - Step 4: Simplify right side
831,011.75x = 553,062,323,611.99 - Step 5: Solve for x
x = 553,062,323,611.99/831,011.75 - Step 6: Final answer
x = 665,528.89
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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.