Finding the Fourth Proportional to 738,077.60, 1,107,116.40 and 486,135.20
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Solution
The fourth proportional to 738,077.60, 1,107,116.40 and 486,135.20 is: 729,202.80
Step by Step Solution
- Step 1: Write the proportion equation
738,077.60 : 1,107,116.40 = 486,135.20 : x - Step 2: Convert to fraction form
738,077.60/1,107,116.40 = 486,135.20/x - Step 3: Cross multiply
738,077.60x = 1,107,116.40 × 486,135.20 - Step 4: Simplify right side
738,077.60x = 538,208,252,537.28 - Step 5: Solve for x
x = 538,208,252,537.28/738,077.60 - Step 6: Final answer
x = 729,202.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.