Finding the Fourth Proportional to 1,669,890.20, 2,304,452.91 and 905,943.75
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Solution
The fourth proportional to 1,669,890.20, 2,304,452.91 and 905,943.75 is: 1,250,204.78
Step by Step Solution
- Step 1: Write the proportion equation
1,669,890.20 : 2,304,452.91 = 905,943.75 : x - Step 2: Convert to fraction form
1,669,890.20/2,304,452.91 = 905,943.75/x - Step 3: Cross multiply
1,669,890.20x = 2,304,452.91 × 905,943.75 - Step 4: Simplify right side
1,669,890.20x = 2,087,704,710,983.81 - Step 5: Solve for x
x = 2,087,704,710,983.81/1,669,890.20 - Step 6: Final answer
x = 1,250,204.78
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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.