Finding the Fourth Proportional to 3,603,518.10, 4,972,855.35 and 1,971,925.80
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Solution
The fourth proportional to 3,603,518.10, 4,972,855.35 and 1,971,925.80 is: 2,721,257.81
Step by Step Solution
- Step 1: Write the proportion equation
3,603,518.10 : 4,972,855.35 = 1,971,925.80 : x - Step 2: Convert to fraction form
3,603,518.10/4,972,855.35 = 1,971,925.80/x - Step 3: Cross multiply
3,603,518.10x = 4,972,855.35 × 1,971,925.80 - Step 4: Simplify right side
3,603,518.10x = 9,806,101,764,333.03 - Step 5: Solve for x
x = 9,806,101,764,333.03/3,603,518.10 - Step 6: Final answer
x = 2,721,257.81
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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.