Finding the Fourth Proportional to 808,469.40, 1,212,708.30 and 209,388.60
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Solution
The fourth proportional to 808,469.40, 1,212,708.30 and 209,388.60 is: 314,083.99
Step by Step Solution
- Step 1: Write the proportion equation
808,469.40 : 1,212,708.30 = 209,388.60 : x - Step 2: Convert to fraction form
808,469.40/1,212,708.30 = 209,388.60/x - Step 3: Cross multiply
808,469.40x = 1,212,708.30 × 209,388.60 - Step 4: Simplify right side
808,469.40x = 253,927,293,145.38 - Step 5: Solve for x
x = 253,927,293,145.38/808,469.40 - Step 6: Final answer
x = 314,083.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.