Finding the Fourth Proportional to 1,608,438.42, 2,219,682.24 and 920,174.94
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Solution
The fourth proportional to 1,608,438.42, 2,219,682.24 and 920,174.94 is: 1,269,862.71
Step by Step Solution
- Step 1: Write the proportion equation
1,608,438.42 : 2,219,682.24 = 920,174.94 : x - Step 2: Convert to fraction form
1,608,438.42/2,219,682.24 = 920,174.94/x - Step 3: Cross multiply
1,608,438.42x = 2,219,682.24 × 920,174.94 - Step 4: Simplify right side
1,608,438.42x = 2,042,495,972,011.07 - Step 5: Solve for x
x = 2,042,495,972,011.07/1,608,438.42 - Step 6: Final answer
x = 1,269,862.71
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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.