Finding the Fourth Proportional to 678,673.17, 1,017,660.92 and 358,996.95
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Solution
The fourth proportional to 678,673.17, 1,017,660.92 and 358,996.95 is: 538,310.90
Step by Step Solution
- Step 1: Write the proportion equation
678,673.17 : 1,017,660.92 = 358,996.95 : x - Step 2: Convert to fraction form
678,673.17/1,017,660.92 = 358,996.95/x - Step 3: Cross multiply
678,673.17x = 1,017,660.92 × 358,996.95 - Step 4: Simplify right side
678,673.17x = 365,337,164,619.21 - Step 5: Solve for x
x = 365,337,164,619.21/678,673.17 - Step 6: Final answer
x = 538,310.90
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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.