Finding the Fourth Proportional to 1,132,658.12, 1,563,103.68 and 642,648.31
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Solution
The fourth proportional to 1,132,658.12, 1,563,103.68 and 642,648.31 is: 886,874.79
Step by Step Solution
- Step 1: Write the proportion equation
1,132,658.12 : 1,563,103.68 = 642,648.31 : x - Step 2: Convert to fraction form
1,132,658.12/1,563,103.68 = 642,648.31/x - Step 3: Cross multiply
1,132,658.12x = 1,563,103.68 × 642,648.31 - Step 4: Simplify right side
1,132,658.12x = 1,004,525,930,491.26 - Step 5: Solve for x
x = 1,004,525,930,491.26/1,132,658.12 - Step 6: Final answer
x = 886,874.79
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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.