Finding the Fourth Proportional to 920,936.18, 1,270,872.78 and 513,037.46
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Solution
The fourth proportional to 920,936.18, 1,270,872.78 and 513,037.46 is: 707,981.03
Step by Step Solution
- Step 1: Write the proportion equation
920,936.18 : 1,270,872.78 = 513,037.46 : x - Step 2: Convert to fraction form
920,936.18/1,270,872.78 = 513,037.46/x - Step 3: Cross multiply
920,936.18x = 1,270,872.78 × 513,037.46 - Step 4: Simplify right side
920,936.18x = 652,005,343,034.34 - Step 5: Solve for x
x = 652,005,343,034.34/920,936.18 - Step 6: Final answer
x = 707,981.03
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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.