Finding the Fourth Proportional to 1,620,329.97, 2,235,987.27 and 931,949.85
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Solution
The fourth proportional to 1,620,329.97, 2,235,987.27 and 931,949.85 is: 1,286,051.63
Step by Step Solution
- Step 1: Write the proportion equation
1,620,329.97 : 2,235,987.27 = 931,949.85 : x - Step 2: Convert to fraction form
1,620,329.97/2,235,987.27 = 931,949.85/x - Step 3: Cross multiply
1,620,329.97x = 2,235,987.27 × 931,949.85 - Step 4: Simplify right side
1,620,329.97x = 2,083,827,996,218.66 - Step 5: Solve for x
x = 2,083,827,996,218.66/1,620,329.97 - Step 6: Final answer
x = 1,286,051.63
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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.