Finding the Fourth Proportional to 1,393,043.21, 2,090,496.86 and 506,579.21
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Solution
The fourth proportional to 1,393,043.21, 2,090,496.86 and 506,579.21 is: 760,207.75
Step by Step Solution
- Step 1: Write the proportion equation
1,393,043.21 : 2,090,496.86 = 506,579.21 : x - Step 2: Convert to fraction form
1,393,043.21/2,090,496.86 = 506,579.21/x - Step 3: Cross multiply
1,393,043.21x = 2,090,496.86 × 506,579.21 - Step 4: Simplify right side
1,393,043.21x = 1,059,002,234,860.90 - Step 5: Solve for x
x = 1,059,002,234,860.90/1,393,043.21 - Step 6: Final answer
x = 760,207.75
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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.