Finding the Fourth Proportional to 840,197.80, 1,260,296.70 and 279,232.30
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Solution
The fourth proportional to 840,197.80, 1,260,296.70 and 279,232.30 is: 418,848.45
Step by Step Solution
- Step 1: Write the proportion equation
840,197.80 : 1,260,296.70 = 279,232.30 : x - Step 2: Convert to fraction form
840,197.80/1,260,296.70 = 279,232.30/x - Step 3: Cross multiply
840,197.80x = 1,260,296.70 × 279,232.30 - Step 4: Simplify right side
840,197.80x = 351,915,546,223.41 - Step 5: Solve for x
x = 351,915,546,223.41/840,197.80 - Step 6: Final answer
x = 418,848.45
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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.