Finding the Fourth Proportional to 3,603,556.95, 4,972,909.10 and 1,971,964.68
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Solution
The fourth proportional to 3,603,556.95, 4,972,909.10 and 1,971,964.68 is: 2,721,311.54
Step by Step Solution
- Step 1: Write the proportion equation
3,603,556.95 : 4,972,909.10 = 1,971,964.68 : x - Step 2: Convert to fraction form
3,603,556.95/4,972,909.10 = 1,971,964.68/x - Step 3: Cross multiply
3,603,556.95x = 4,972,909.10 × 1,971,964.68 - Step 4: Simplify right side
3,603,556.95x = 9,806,401,102,050.59 - Step 5: Solve for x
x = 9,806,401,102,050.59/3,603,556.95 - Step 6: Final answer
x = 2,721,311.54
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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.