Finding the Fourth Proportional to 1,189,809.76, 1,641,329.28 and 759,637.92
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Solution
The fourth proportional to 1,189,809.76, 1,641,329.28 and 759,637.92 is: 1,047,912.03
Step by Step Solution
- Step 1: Write the proportion equation
1,189,809.76 : 1,641,329.28 = 759,637.92 : x - Step 2: Convert to fraction form
1,189,809.76/1,641,329.28 = 759,637.92/x - Step 3: Cross multiply
1,189,809.76x = 1,641,329.28 × 759,637.92 - Step 4: Simplify right side
1,189,809.76x = 1,246,815,960,294.30 - Step 5: Solve for x
x = 1,246,815,960,294.30/1,189,809.76 - Step 6: Final answer
x = 1,047,912.03
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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.