Finding the Fourth Proportional to 678,038.13, 935,821.62 and 448,599.96
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Solution
The fourth proportional to 678,038.13, 935,821.62 and 448,599.96 is: 619,153.29
Step by Step Solution
- Step 1: Write the proportion equation
678,038.13 : 935,821.62 = 448,599.96 : x - Step 2: Convert to fraction form
678,038.13/935,821.62 = 448,599.96/x - Step 3: Cross multiply
678,038.13x = 935,821.62 × 448,599.96 - Step 4: Simplify right side
678,038.13x = 419,809,541,299.14 - Step 5: Solve for x
x = 419,809,541,299.14/678,038.13 - Step 6: Final answer
x = 619,153.29
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.