Finding the Fourth Proportional to 816,525.70, 1,126,809.85 and 449,026.53
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Solution
The fourth proportional to 816,525.70, 1,126,809.85 and 449,026.53 is: 619,659.02
Step by Step Solution
- Step 1: Write the proportion equation
816,525.70 : 1,126,809.85 = 449,026.53 : x - Step 2: Convert to fraction form
816,525.70/1,126,809.85 = 449,026.53/x - Step 3: Cross multiply
816,525.70x = 1,126,809.85 × 449,026.53 - Step 4: Simplify right side
816,525.70x = 505,967,511,281.27 - Step 5: Solve for x
x = 505,967,511,281.27/816,525.70 - Step 6: Final answer
x = 619,659.02
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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.