Finding the Fourth Proportional to 743,878.08, 1,115,136.72 and 323,002.08
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Solution
The fourth proportional to 743,878.08, 1,115,136.72 and 323,002.08 is: 484,207.68
Step by Step Solution
- Step 1: Write the proportion equation
743,878.08 : 1,115,136.72 = 323,002.08 : x - Step 2: Convert to fraction form
743,878.08/1,115,136.72 = 323,002.08/x - Step 3: Cross multiply
743,878.08x = 1,115,136.72 × 323,002.08 - Step 4: Simplify right side
743,878.08x = 360,191,480,044.38 - Step 5: Solve for x
x = 360,191,480,044.38/743,878.08 - Step 6: Final answer
x = 484,207.68
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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.