Finding the Fourth Proportional to 1,028,266.21, 1,421,716.14 and 900,575.79
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Solution
The fourth proportional to 1,028,266.21, 1,421,716.14 and 900,575.79 is: 1,245,166.98
Step by Step Solution
- Step 1: Write the proportion equation
1,028,266.21 : 1,421,716.14 = 900,575.79 : x - Step 2: Convert to fraction form
1,028,266.21/1,421,716.14 = 900,575.79/x - Step 3: Cross multiply
1,028,266.21x = 1,421,716.14 × 900,575.79 - Step 4: Simplify right side
1,028,266.21x = 1,280,363,135,936.25 - Step 5: Solve for x
x = 1,280,363,135,936.25/1,028,266.21 - Step 6: Final answer
x = 1,245,166.98
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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.