Finding the Fourth Proportional to 429,660.83, 644,487.14 and 261,227.66
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Solution
The fourth proportional to 429,660.83, 644,487.14 and 261,227.66 is: 391,838.99
Step by Step Solution
- Step 1: Write the proportion equation
429,660.83 : 644,487.14 = 261,227.66 : x - Step 2: Convert to fraction form
429,660.83/644,487.14 = 261,227.66/x - Step 3: Cross multiply
429,660.83x = 644,487.14 × 261,227.66 - Step 4: Simplify right side
429,660.83x = 168,357,867,482.29 - Step 5: Solve for x
x = 168,357,867,482.29/429,660.83 - Step 6: Final answer
x = 391,838.99
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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.