Finding the Fourth Proportional to 831,418, 1,147,358.52 and 449,444.74
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Solution
The fourth proportional to 831,418, 1,147,358.52 and 449,444.74 is: 620,234.65
Step by Step Solution
- Step 1: Write the proportion equation
831,418 : 1,147,358.52 = 449,444.74 : x - Step 2: Convert to fraction form
831,418/1,147,358.52 = 449,444.74/x - Step 3: Cross multiply
831,418x = 1,147,358.52 × 449,444.74 - Step 4: Simplify right side
831,418x = 515,674,251,708.19 - Step 5: Solve for x
x = 515,674,251,708.19/831,418 - Step 6: Final answer
x = 620,234.65
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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.