Finding the Fourth Proportional to 777,520.80, 1,165,878 and 356,434.08
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Solution
The fourth proportional to 777,520.80, 1,165,878 and 356,434.08 is: 534,466.28
Step by Step Solution
- Step 1: Write the proportion equation
777,520.80 : 1,165,878 = 356,434.08 : x - Step 2: Convert to fraction form
777,520.80/1,165,878 = 356,434.08/x - Step 3: Cross multiply
777,520.80x = 1,165,878 × 356,434.08 - Step 4: Simplify right side
777,520.80x = 415,558,652,322.24 - Step 5: Solve for x
x = 415,558,652,322.24/777,520.80 - Step 6: Final answer
x = 534,466.28
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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.