Finding the Fourth Proportional to 1,580,280.84, 2,180,771.64 and 855,112.68
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Solution
The fourth proportional to 1,580,280.84, 2,180,771.64 and 855,112.68 is: 1,180,046.88
Step by Step Solution
- Step 1: Write the proportion equation
1,580,280.84 : 2,180,771.64 = 855,112.68 : x - Step 2: Convert to fraction form
1,580,280.84/2,180,771.64 = 855,112.68/x - Step 3: Cross multiply
1,580,280.84x = 2,180,771.64 × 855,112.68 - Step 4: Simplify right side
1,580,280.84x = 1,864,805,481,548.40 - Step 5: Solve for x
x = 1,864,805,481,548.40/1,580,280.84 - Step 6: Final answer
x = 1,180,046.88
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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.