Finding the Fourth Proportional to 611,459.70, 917,546.76 and 256,443.99
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Solution
The fourth proportional to 611,459.70, 917,546.76 and 256,443.99 is: 384,815.80
Step by Step Solution
- Step 1: Write the proportion equation
611,459.70 : 917,546.76 = 256,443.99 : x - Step 2: Convert to fraction form
611,459.70/917,546.76 = 256,443.99/x - Step 3: Cross multiply
611,459.70x = 917,546.76 × 256,443.99 - Step 4: Simplify right side
611,459.70x = 235,299,352,145.97 - Step 5: Solve for x
x = 235,299,352,145.97/611,459.70 - Step 6: Final answer
x = 384,815.80
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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.