Finding the Fourth Proportional to 743,911.68, 1,026,604.08 and 404,379.12
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Solution
The fourth proportional to 743,911.68, 1,026,604.08 and 404,379.12 is: 558,046.43
Step by Step Solution
- Step 1: Write the proportion equation
743,911.68 : 1,026,604.08 = 404,379.12 : x - Step 2: Convert to fraction form
743,911.68/1,026,604.08 = 404,379.12/x - Step 3: Cross multiply
743,911.68x = 1,026,604.08 × 404,379.12 - Step 4: Simplify right side
743,911.68x = 415,137,254,458.81 - Step 5: Solve for x
x = 415,137,254,458.81/743,911.68 - Step 6: Final answer
x = 558,046.43
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1.5x scale
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.