Finding the Fourth Proportional to 1,537,620.13, 2,121,903.11 and 839,901.52
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Solution
The fourth proportional to 1,537,620.13, 2,121,903.11 and 839,901.52 is: 1,159,057.18
Step by Step Solution
- Step 1: Write the proportion equation
1,537,620.13 : 2,121,903.11 = 839,901.52 : x - Step 2: Convert to fraction form
1,537,620.13/2,121,903.11 = 839,901.52/x - Step 3: Cross multiply
1,537,620.13x = 2,121,903.11 × 839,901.52 - Step 4: Simplify right side
1,537,620.13x = 1,782,189,647,381.73 - Step 5: Solve for x
x = 1,782,189,647,381.73/1,537,620.13 - Step 6: Final answer
x = 1,159,057.18
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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.