Finding the Fourth Proportional to 417,729.80, 626,594.70 and 207,777.80
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Solution
The fourth proportional to 417,729.80, 626,594.70 and 207,777.80 is: 311,666.70
Step by Step Solution
- Step 1: Write the proportion equation
417,729.80 : 626,594.70 = 207,777.80 : x - Step 2: Convert to fraction form
417,729.80/626,594.70 = 207,777.80/x - Step 3: Cross multiply
417,729.80x = 626,594.70 × 207,777.80 - Step 4: Simplify right side
417,729.80x = 130,192,468,257.66 - Step 5: Solve for x
x = 130,192,468,257.66/417,729.80 - Step 6: Final answer
x = 311,666.70
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1.5x scale
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.