Finding the Fourth Proportional to 538,310.80, 809,215.80 and 461,328.40
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Solution
The fourth proportional to 538,310.80, 809,215.80 and 461,328.40 is: 693,491.99
Step by Step Solution
- Step 1: Write the proportion equation
538,310.80 : 809,215.80 = 461,328.40 : x - Step 2: Convert to fraction form
538,310.80/809,215.80 = 461,328.40/x - Step 3: Cross multiply
538,310.80x = 809,215.80 × 461,328.40 - Step 4: Simplify right side
538,310.80x = 373,314,230,268.72 - Step 5: Solve for x
x = 373,314,230,268.72/538,310.80 - Step 6: Final answer
x = 693,491.99
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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.