Finding the Fourth Proportional to 728,817.68, 1,093,438.04 and 302,275.28
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Solution
The fourth proportional to 728,817.68, 1,093,438.04 and 302,275.28 is: 453,500.65
Step by Step Solution
- Step 1: Write the proportion equation
728,817.68 : 1,093,438.04 = 302,275.28 : x - Step 2: Convert to fraction form
728,817.68/1,093,438.04 = 302,275.28/x - Step 3: Cross multiply
728,817.68x = 1,093,438.04 × 302,275.28 - Step 4: Simplify right side
728,817.68x = 330,519,289,703.65 - Step 5: Solve for x
x = 330,519,289,703.65/728,817.68 - Step 6: Final answer
x = 453,500.65
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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.