Finding the Fourth Proportional to 2,081,210.70, 3,121,902.45 and 661,226.70
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Solution
The fourth proportional to 2,081,210.70, 3,121,902.45 and 661,226.70 is: 991,867.50
Step by Step Solution
- Step 1: Write the proportion equation
2,081,210.70 : 3,121,902.45 = 661,226.70 : x - Step 2: Convert to fraction form
2,081,210.70/3,121,902.45 = 661,226.70/x - Step 3: Cross multiply
2,081,210.70x = 3,121,902.45 × 661,226.70 - Step 4: Simplify right side
2,081,210.70x = 2,064,285,254,735.42 - Step 5: Solve for x
x = 2,064,285,254,735.42/2,081,210.70 - Step 6: Final answer
x = 991,867.50
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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.