Finding the Fourth Proportional to 2,850,878.80, 3,934,214.04 and 1,561,765.84
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Solution
The fourth proportional to 2,850,878.80, 3,934,214.04 and 1,561,765.84 is: 2,155,237.57
Step by Step Solution
- Step 1: Write the proportion equation
2,850,878.80 : 3,934,214.04 = 1,561,765.84 : x - Step 2: Convert to fraction form
2,850,878.80/3,934,214.04 = 1,561,765.84/x - Step 3: Cross multiply
2,850,878.80x = 3,934,214.04 × 1,561,765.84 - Step 4: Simplify right side
2,850,878.80x = 6,144,321,094,920.39 - Step 5: Solve for x
x = 6,144,321,094,920.39/2,850,878.80 - Step 6: Final answer
x = 2,155,237.57
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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.