Finding the Fourth Proportional to 644,693.49, 967,156.94 and 212,434.00
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Solution
The fourth proportional to 644,693.49, 967,156.94 and 212,434.00 is: 318,689.45
Step by Step Solution
- Step 1: Write the proportion equation
644,693.49 : 967,156.94 = 212,434.00 : x - Step 2: Convert to fraction form
644,693.49/967,156.94 = 212,434.00/x - Step 3: Cross multiply
644,693.49x = 967,156.94 × 212,434.00 - Step 4: Simplify right side
644,693.49x = 205,457,015,505.15 - Step 5: Solve for x
x = 205,457,015,505.15/644,693.49 - Step 6: Final answer
x = 318,689.45
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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.