Finding the Fourth Proportional to 3,121,571.13, 4,682,358.51 and 877,709.13
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Solution
The fourth proportional to 3,121,571.13, 4,682,358.51 and 877,709.13 is: 1,316,564.21
Step by Step Solution
- Step 1: Write the proportion equation
3,121,571.13 : 4,682,358.51 = 877,709.13 : x - Step 2: Convert to fraction form
3,121,571.13/4,682,358.51 = 877,709.13/x - Step 3: Cross multiply
3,121,571.13x = 4,682,358.51 × 877,709.13 - Step 4: Simplify right side
3,121,571.13x = 4,109,748,814,160.20 - Step 5: Solve for x
x = 4,109,748,814,160.20/3,121,571.13 - Step 6: Final answer
x = 1,316,564.21
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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.