Finding the Fourth Proportional to 742,296.79, 1,112,452.54 and 386,563.99
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Solution
The fourth proportional to 742,296.79, 1,112,452.54 and 386,563.99 is: 579,329.05
Step by Step Solution
- Step 1: Write the proportion equation
742,296.79 : 1,112,452.54 = 386,563.99 : x - Step 2: Convert to fraction form
742,296.79/1,112,452.54 = 386,563.99/x - Step 3: Cross multiply
742,296.79x = 1,112,452.54 × 386,563.99 - Step 4: Simplify right side
742,296.79x = 430,034,092,548.04 - Step 5: Solve for x
x = 430,034,092,548.04/742,296.79 - Step 6: Final answer
x = 579,329.05
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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.