Finding the Fourth Proportional to 484,126.23, 667,718.84 and 312,072.21
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Solution
The fourth proportional to 484,126.23, 667,718.84 and 312,072.21 is: 430,417.69
Step by Step Solution
- Step 1: Write the proportion equation
484,126.23 : 667,718.84 = 312,072.21 : x - Step 2: Convert to fraction form
484,126.23/667,718.84 = 312,072.21/x - Step 3: Cross multiply
484,126.23x = 667,718.84 × 312,072.21 - Step 4: Simplify right side
484,126.23x = 208,376,492,497.08 - Step 5: Solve for x
x = 208,376,492,497.08/484,126.23 - Step 6: Final answer
x = 430,417.69
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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.