Finding the Fourth Proportional to 678,566.97, 1,016,299.74 and 323,830.10
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Solution
The fourth proportional to 678,566.97, 1,016,299.74 and 323,830.10 is: 485,005.11
Step by Step Solution
- Step 1: Write the proportion equation
678,566.97 : 1,016,299.74 = 323,830.10 : x - Step 2: Convert to fraction form
678,566.97/1,016,299.74 = 323,830.10/x - Step 3: Cross multiply
678,566.97x = 1,016,299.74 × 323,830.10 - Step 4: Simplify right side
678,566.97x = 329,108,446,434.17 - Step 5: Solve for x
x = 329,108,446,434.17/678,566.97 - Step 6: Final answer
x = 485,005.11
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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.