Finding the Fourth Proportional to 328,378.05, 491,607.43 and 296,860.65
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Solution
The fourth proportional to 328,378.05, 491,607.43 and 296,860.65 is: 444,423.43
Step by Step Solution
- Step 1: Write the proportion equation
328,378.05 : 491,607.43 = 296,860.65 : x - Step 2: Convert to fraction form
328,378.05/491,607.43 = 296,860.65/x - Step 3: Cross multiply
328,378.05x = 491,607.43 × 296,860.65 - Step 4: Simplify right side
328,378.05x = 145,938,898,628.95 - Step 5: Solve for x
x = 145,938,898,628.95/328,378.05 - Step 6: Final answer
x = 444,423.43
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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.