Finding the Fourth Proportional to 3,115,381.80, 4,674,384.90 and 1,696,456.20
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Solution
The fourth proportional to 3,115,381.80, 4,674,384.90 and 1,696,456.20 is: 2,545,398.85
Step by Step Solution
- Step 1: Write the proportion equation
3,115,381.80 : 4,674,384.90 = 1,696,456.20 : x - Step 2: Convert to fraction form
3,115,381.80/4,674,384.90 = 1,696,456.20/x - Step 3: Cross multiply
3,115,381.80x = 4,674,384.90 × 1,696,456.20 - Step 4: Simplify right side
3,115,381.80x = 7,929,889,244,791.38 - Step 5: Solve for x
x = 7,929,889,244,791.38/3,115,381.80 - Step 6: Final answer
x = 2,545,398.85
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.