Finding the Fourth Proportional to 3,878,262.99, 5,352,944.94 and 2,246,406.21
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Solution
The fourth proportional to 3,878,262.99, 5,352,944.94 and 2,246,406.21 is: 3,100,586.21
Step by Step Solution
- Step 1: Write the proportion equation
3,878,262.99 : 5,352,944.94 = 2,246,406.21 : x - Step 2: Convert to fraction form
3,878,262.99/5,352,944.94 = 2,246,406.21/x - Step 3: Cross multiply
3,878,262.99x = 5,352,944.94 × 2,246,406.21 - Step 4: Simplify right side
3,878,262.99x = 12,024,888,755,004.08 - Step 5: Solve for x
x = 12,024,888,755,004.08/3,878,262.99 - Step 6: Final answer
x = 3,100,586.21
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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.