Finding the Fourth Proportional to 623,871.36, 935,709.12 and 203,143.68
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Solution
The fourth proportional to 623,871.36, 935,709.12 and 203,143.68 is: 304,683.64
Step by Step Solution
- Step 1: Write the proportion equation
623,871.36 : 935,709.12 = 203,143.68 : x - Step 2: Convert to fraction form
623,871.36/935,709.12 = 203,143.68/x - Step 3: Cross multiply
623,871.36x = 935,709.12 × 203,143.68 - Step 4: Simplify right side
623,871.36x = 190,083,394,046.36 - Step 5: Solve for x
x = 190,083,394,046.36/623,871.36 - Step 6: Final answer
x = 304,683.64
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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.