Finding the Fourth Proportional to 2,421,474.18, 3,341,634.21 and 1,403,469.42
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Solution
The fourth proportional to 2,421,474.18, 3,341,634.21 and 1,403,469.42 is: 1,936,787.71
Step by Step Solution
- Step 1: Write the proportion equation
2,421,474.18 : 3,341,634.21 = 1,403,469.42 : x - Step 2: Convert to fraction form
2,421,474.18/3,341,634.21 = 1,403,469.42/x - Step 3: Cross multiply
2,421,474.18x = 3,341,634.21 × 1,403,469.42 - Step 4: Simplify right side
2,421,474.18x = 4,689,881,426,560.86 - Step 5: Solve for x
x = 4,689,881,426,560.86/2,421,474.18 - Step 6: Final answer
x = 1,936,787.71
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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.