Finding the Fourth Proportional to 1,189,607.99, 1,641,614.58 and 645,732.14
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Solution
The fourth proportional to 1,189,607.99, 1,641,614.58 and 645,732.14 is: 891,086.22
Step by Step Solution
- Step 1: Write the proportion equation
1,189,607.99 : 1,641,614.58 = 645,732.14 : x - Step 2: Convert to fraction form
1,189,607.99/1,641,614.58 = 645,732.14/x - Step 3: Cross multiply
1,189,607.99x = 1,641,614.58 × 645,732.14 - Step 4: Simplify right side
1,189,607.99x = 1,060,043,287,590.53 - Step 5: Solve for x
x = 1,060,043,287,590.53/1,189,607.99 - Step 6: Final answer
x = 891,086.22
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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.