Finding the Fourth Proportional to 625,953.98, 863,806.28 and 354,011.67
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Solution
The fourth proportional to 625,953.98, 863,806.28 and 354,011.67 is: 488,530.32
Step by Step Solution
- Step 1: Write the proportion equation
625,953.98 : 863,806.28 = 354,011.67 : x - Step 2: Convert to fraction form
625,953.98/863,806.28 = 354,011.67/x - Step 3: Cross multiply
625,953.98x = 863,806.28 × 354,011.67 - Step 4: Simplify right side
625,953.98x = 305,797,501,969.23 - Step 5: Solve for x
x = 305,797,501,969.23/625,953.98 - Step 6: Final answer
x = 488,530.32
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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.