Finding the Fourth Proportional to 418,916.21, 578,107.94 and 237,628.49
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Solution
The fourth proportional to 418,916.21, 578,107.94 and 237,628.49 is: 327,929.34
Step by Step Solution
- Step 1: Write the proportion equation
418,916.21 : 578,107.94 = 237,628.49 : x - Step 2: Convert to fraction form
418,916.21/578,107.94 = 237,628.49/x - Step 3: Cross multiply
418,916.21x = 578,107.94 × 237,628.49 - Step 4: Simplify right side
418,916.21x = 137,374,912,760.53 - Step 5: Solve for x
x = 137,374,912,760.53/418,916.21 - Step 6: Final answer
x = 327,929.34
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.