Finding the Fourth Proportional to 720,456.84, 994,165.11 and 414,451.80
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Solution
The fourth proportional to 720,456.84, 994,165.11 and 414,451.80 is: 571,905.90
Step by Step Solution
- Step 1: Write the proportion equation
720,456.84 : 994,165.11 = 414,451.80 : x - Step 2: Convert to fraction form
720,456.84/994,165.11 = 414,451.80/x - Step 3: Cross multiply
720,456.84x = 994,165.11 × 414,451.80 - Step 4: Simplify right side
720,456.84x = 412,033,519,336.70 - Step 5: Solve for x
x = 412,033,519,336.70/720,456.84 - Step 6: Final answer
x = 571,905.90
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1.5x scale
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.