Finding the Fourth Proportional to 543,201.12, 749,707.68 and 316,846.68
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Solution
The fourth proportional to 543,201.12, 749,707.68 and 316,846.68 is: 437,300.99
Step by Step Solution
- Step 1: Write the proportion equation
543,201.12 : 749,707.68 = 316,846.68 : x - Step 2: Convert to fraction form
543,201.12/749,707.68 = 316,846.68/x - Step 3: Cross multiply
543,201.12x = 749,707.68 × 316,846.68 - Step 4: Simplify right side
543,201.12x = 237,542,389,378.50 - Step 5: Solve for x
x = 237,542,389,378.50/543,201.12 - Step 6: Final answer
x = 437,300.99
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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.