Finding the Fourth Proportional to 1,145,452.92, 1,580,728.71 and 636,155.28
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Solution
The fourth proportional to 1,145,452.92, 1,580,728.71 and 636,155.28 is: 877,896.33
Step by Step Solution
- Step 1: Write the proportion equation
1,145,452.92 : 1,580,728.71 = 636,155.28 : x - Step 2: Convert to fraction form
1,145,452.92/1,580,728.71 = 636,155.28/x - Step 3: Cross multiply
1,145,452.92x = 1,580,728.71 × 636,155.28 - Step 4: Simplify right side
1,145,452.92x = 1,005,588,915,114.09 - Step 5: Solve for x
x = 1,005,588,915,114.09/1,145,452.92 - Step 6: Final answer
x = 877,896.33
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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.