Finding the Fourth Proportional to 680,049.12, 938,665.44 and 453,694.08
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Solution
The fourth proportional to 680,049.12, 938,665.44 and 453,694.08 is: 626,229.70
Step by Step Solution
- Step 1: Write the proportion equation
680,049.12 : 938,665.44 = 453,694.08 : x - Step 2: Convert to fraction form
680,049.12/938,665.44 = 453,694.08/x - Step 3: Cross multiply
680,049.12x = 938,665.44 × 453,694.08 - Step 4: Simplify right side
680,049.12x = 425,866,953,228.60 - Step 5: Solve for x
x = 425,866,953,228.60/680,049.12 - Step 6: Final answer
x = 626,229.70
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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.