Finding the Fourth Proportional to 3,931,284.42, 5,424,274.94 and 2,211,777.54
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Solution
The fourth proportional to 3,931,284.42, 5,424,274.94 and 2,211,777.54 is: 3,051,748.03
Step by Step Solution
- Step 1: Write the proportion equation
3,931,284.42 : 5,424,274.94 = 2,211,777.54 : x - Step 2: Convert to fraction form
3,931,284.42/5,424,274.94 = 2,211,777.54/x - Step 3: Cross multiply
3,931,284.42x = 5,424,274.94 × 2,211,777.54 - Step 4: Simplify right side
3,931,284.42x = 11,997,289,472,017.96 - Step 5: Solve for x
x = 11,997,289,472,017.96/3,931,284.42 - Step 6: Final answer
x = 3,051,748.03
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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.