Finding the Fourth Proportional to 667,328.75, 920,930.56 and 409,347.95
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Solution
The fourth proportional to 667,328.75, 920,930.56 and 409,347.95 is: 564,910.53
Step by Step Solution
- Step 1: Write the proportion equation
667,328.75 : 920,930.56 = 409,347.95 : x - Step 2: Convert to fraction form
667,328.75/920,930.56 = 409,347.95/x - Step 3: Cross multiply
667,328.75x = 920,930.56 × 409,347.95 - Step 4: Simplify right side
667,328.75x = 376,981,041,273.26 - Step 5: Solve for x
x = 376,981,041,273.26/667,328.75 - Step 6: Final answer
x = 564,910.53
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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.