Finding the Fourth Proportional to 742,556.80, 1,024,729.38 and 403,024.96
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Solution
The fourth proportional to 742,556.80, 1,024,729.38 and 403,024.96 is: 556,174.99
Step by Step Solution
- Step 1: Write the proportion equation
742,556.80 : 1,024,729.38 = 403,024.96 : x - Step 2: Convert to fraction form
742,556.80/1,024,729.38 = 403,024.96/x - Step 3: Cross multiply
742,556.80x = 1,024,729.38 × 403,024.96 - Step 4: Simplify right side
742,556.80x = 412,991,517,385.33 - Step 5: Solve for x
x = 412,991,517,385.33/742,556.80 - Step 6: Final answer
x = 556,174.99
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1.5x scale
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.