Finding the Fourth Proportional to 900,879.70, 1,243,160.70 and 492,900.24
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Solution
The fourth proportional to 900,879.70, 1,243,160.70 and 492,900.24 is: 680,173.18
Step by Step Solution
- Step 1: Write the proportion equation
900,879.70 : 1,243,160.70 = 492,900.24 : x - Step 2: Convert to fraction form
900,879.70/1,243,160.70 = 492,900.24/x - Step 3: Cross multiply
900,879.70x = 1,243,160.70 × 492,900.24 - Step 4: Simplify right side
900,879.70x = 612,754,207,388.57 - Step 5: Solve for x
x = 612,754,207,388.57/900,879.70 - Step 6: Final answer
x = 680,173.18
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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.