Finding the Fourth Proportional to 1,313,907.62, 1,970,858.18 and 316,635.62
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Solution
The fourth proportional to 1,313,907.62, 1,970,858.18 and 316,635.62 is: 474,952.64
Step by Step Solution
- Step 1: Write the proportion equation
1,313,907.62 : 1,970,858.18 = 316,635.62 : x - Step 2: Convert to fraction form
1,313,907.62/1,970,858.18 = 316,635.62/x - Step 3: Cross multiply
1,313,907.62x = 1,970,858.18 × 316,635.62 - Step 4: Simplify right side
1,313,907.62x = 624,043,892,693.67 - Step 5: Solve for x
x = 624,043,892,693.67/1,313,907.62 - Step 6: Final answer
x = 474,952.64
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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.