Finding the Fourth Proportional to 1,665,938.13, 2,498,907.20 and 403,765.75
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Solution
The fourth proportional to 1,665,938.13, 2,498,907.20 and 403,765.75 is: 605,648.63
Step by Step Solution
- Step 1: Write the proportion equation
1,665,938.13 : 2,498,907.20 = 403,765.75 : x - Step 2: Convert to fraction form
1,665,938.13/2,498,907.20 = 403,765.75/x - Step 3: Cross multiply
1,665,938.13x = 2,498,907.20 × 403,765.75 - Step 4: Simplify right side
1,665,938.13x = 1,008,973,139,788.40 - Step 5: Solve for x
x = 1,008,973,139,788.40/1,665,938.13 - Step 6: Final answer
x = 605,648.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.