Finding the Fourth Proportional to 2,682,661.20, 4,023,991.80 and 688,117.20
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Solution
The fourth proportional to 2,682,661.20, 4,023,991.80 and 688,117.20 is: 1,032,175.80
Step by Step Solution
- Step 1: Write the proportion equation
2,682,661.20 : 4,023,991.80 = 688,117.20 : x - Step 2: Convert to fraction form
2,682,661.20/4,023,991.80 = 688,117.20/x - Step 3: Cross multiply
2,682,661.20x = 4,023,991.80 × 688,117.20 - Step 4: Simplify right side
2,682,661.20x = 2,768,977,970,238.96 - Step 5: Solve for x
x = 2,768,977,970,238.96/2,682,661.20 - Step 6: Final answer
x = 1,032,175.80
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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.