Finding the Fourth Proportional to 1,690,867.85, 2,535,760.49 and 553,321.67
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Solution
The fourth proportional to 1,690,867.85, 2,535,760.49 and 553,321.67 is: 829,805.37
Step by Step Solution
- Step 1: Write the proportion equation
1,690,867.85 : 2,535,760.49 = 553,321.67 : x - Step 2: Convert to fraction form
1,690,867.85/2,535,760.49 = 553,321.67/x - Step 3: Cross multiply
1,690,867.85x = 2,535,760.49 × 553,321.67 - Step 4: Simplify right side
1,690,867.85x = 1,403,091,213,601.41 - Step 5: Solve for x
x = 1,403,091,213,601.41/1,690,867.85 - Step 6: Final answer
x = 829,805.37
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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.