Finding the Fourth Proportional to 874,942.80, 1,207,421.19 and 472,534.80
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Solution
The fourth proportional to 874,942.80, 1,207,421.19 and 472,534.80 is: 652,098.09
Step by Step Solution
- Step 1: Write the proportion equation
874,942.80 : 1,207,421.19 = 472,534.80 : x - Step 2: Convert to fraction form
874,942.80/1,207,421.19 = 472,534.80/x - Step 3: Cross multiply
874,942.80x = 1,207,421.19 × 472,534.80 - Step 4: Simplify right side
874,942.80x = 570,548,530,532.41 - Step 5: Solve for x
x = 570,548,530,532.41/874,942.80 - Step 6: Final answer
x = 652,098.09
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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.