Finding the Fourth Proportional to 1,580,391.94, 2,180,940.78 and 855,239.62
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Solution
The fourth proportional to 1,580,391.94, 2,180,940.78 and 855,239.62 is: 1,180,230.62
Step by Step Solution
- Step 1: Write the proportion equation
1,580,391.94 : 2,180,940.78 = 855,239.62 : x - Step 2: Convert to fraction form
1,580,391.94/2,180,940.78 = 855,239.62/x - Step 3: Cross multiply
1,580,391.94x = 2,180,940.78 × 855,239.62 - Step 4: Simplify right side
1,580,391.94x = 1,865,226,963,929.70 - Step 5: Solve for x
x = 1,865,226,963,929.70/1,580,391.94 - Step 6: Final answer
x = 1,180,230.62
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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.