Finding the Fourth Proportional to 738,058.02, 1,107,436.94 and 439,129.14
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Solution
The fourth proportional to 738,058.02, 1,107,436.94 and 439,129.14 is: 658,901.90
Step by Step Solution
- Step 1: Write the proportion equation
738,058.02 : 1,107,436.94 = 439,129.14 : x - Step 2: Convert to fraction form
738,058.02/1,107,436.94 = 439,129.14/x - Step 3: Cross multiply
738,058.02x = 1,107,436.94 × 439,129.14 - Step 4: Simplify right side
738,058.02x = 486,307,828,834.73 - Step 5: Solve for x
x = 486,307,828,834.73/738,058.02 - Step 6: Final answer
x = 658,901.90
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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.