Finding the Fourth Proportional to 543,226.19, 749,689.90 and 313,860.92
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Solution
The fourth proportional to 543,226.19, 749,689.90 and 313,860.92 is: 433,149.88
Step by Step Solution
- Step 1: Write the proportion equation
543,226.19 : 749,689.90 = 313,860.92 : x - Step 2: Convert to fraction form
543,226.19/749,689.90 = 313,860.92/x - Step 3: Cross multiply
543,226.19x = 749,689.90 × 313,860.92 - Step 4: Simplify right side
543,226.19x = 235,298,357,195.61 - Step 5: Solve for x
x = 235,298,357,195.61/543,226.19 - Step 6: Final answer
x = 433,149.88
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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.