Finding the Fourth Proportional to 812,260.62, 1,217,484.69 and 338,788.62
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Solution
The fourth proportional to 812,260.62, 1,217,484.69 and 338,788.62 is: 507,804.94
Step by Step Solution
- Step 1: Write the proportion equation
812,260.62 : 1,217,484.69 = 338,788.62 : x - Step 2: Convert to fraction form
812,260.62/1,217,484.69 = 338,788.62/x - Step 3: Cross multiply
812,260.62x = 1,217,484.69 × 338,788.62 - Step 4: Simplify right side
812,260.62x = 412,469,957,996.23 - Step 5: Solve for x
x = 412,469,957,996.23/812,260.62 - Step 6: Final answer
x = 507,804.94
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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.