Finding the Fourth Proportional to 4,314,902.40, 6,470,020.80 and 1,790,812.80
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Solution
The fourth proportional to 4,314,902.40, 6,470,020.80 and 1,790,812.80 is: 2,685,251.02
Step by Step Solution
- Step 1: Write the proportion equation
4,314,902.40 : 6,470,020.80 = 1,790,812.80 : x - Step 2: Convert to fraction form
4,314,902.40/6,470,020.80 = 1,790,812.80/x - Step 3: Cross multiply
4,314,902.40x = 6,470,020.80 × 1,790,812.80 - Step 4: Simplify right side
4,314,902.40x = 11,586,596,064,906.24 - Step 5: Solve for x
x = 11,586,596,064,906.24/4,314,902.40 - Step 6: Final answer
x = 2,685,251.02
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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.