Finding the Fourth Proportional to 4,292,615.64, 6,434,128.26 and 1,860,961.62
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Solution
The fourth proportional to 4,292,615.64, 6,434,128.26 and 1,860,961.62 is: 2,789,363.58
Step by Step Solution
- Step 1: Write the proportion equation
4,292,615.64 : 6,434,128.26 = 1,860,961.62 : x - Step 2: Convert to fraction form
4,292,615.64/6,434,128.26 = 1,860,961.62/x - Step 3: Cross multiply
4,292,615.64x = 6,434,128.26 × 1,860,961.62 - Step 4: Simplify right side
4,292,615.64x = 11,973,665,750,017.38 - Step 5: Solve for x
x = 11,973,665,750,017.38/4,292,615.64 - Step 6: Final answer
x = 2,789,363.58
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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.