Finding the Fourth Proportional to 2,405,682.42, 3,319,840.58 and 1,438,812.69
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Solution
The fourth proportional to 2,405,682.42, 3,319,840.58 and 1,438,812.69 is: 1,985,560.82
Step by Step Solution
- Step 1: Write the proportion equation
2,405,682.42 : 3,319,840.58 = 1,438,812.69 : x - Step 2: Convert to fraction form
2,405,682.42/3,319,840.58 = 1,438,812.69/x - Step 3: Cross multiply
2,405,682.42x = 3,319,840.58 × 1,438,812.69 - Step 4: Simplify right side
2,405,682.42x = 4,776,628,755,280.96 - Step 5: Solve for x
x = 4,776,628,755,280.96/2,405,682.42 - Step 6: Final answer
x = 1,985,560.82
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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.