Finding the Fourth Proportional to 1,805,128.88, 2,491,097.36 and 989,315.01
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Solution
The fourth proportional to 1,805,128.88, 2,491,097.36 and 989,315.01 is: 1,365,265.39
Step by Step Solution
- Step 1: Write the proportion equation
1,805,128.88 : 2,491,097.36 = 989,315.01 : x - Step 2: Convert to fraction form
1,805,128.88/2,491,097.36 = 989,315.01/x - Step 3: Cross multiply
1,805,128.88x = 2,491,097.36 × 989,315.01 - Step 4: Simplify right side
1,805,128.88x = 2,464,479,997,666.59 - Step 5: Solve for x
x = 2,464,479,997,666.59/1,805,128.88 - Step 6: Final answer
x = 1,365,265.39
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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.