Finding the Fourth Proportional to 742,749.57, 1,024,995.42 and 403,217.82
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Solution
The fourth proportional to 742,749.57, 1,024,995.42 and 403,217.82 is: 556,441.14
Step by Step Solution
- Step 1: Write the proportion equation
742,749.57 : 1,024,995.42 = 403,217.82 : x - Step 2: Convert to fraction form
742,749.57/1,024,995.42 = 403,217.82/x - Step 3: Cross multiply
742,749.57x = 1,024,995.42 × 403,217.82 - Step 4: Simplify right side
742,749.57x = 413,296,418,762.38 - Step 5: Solve for x
x = 413,296,418,762.38/742,749.57 - Step 6: Final answer
x = 556,441.14
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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.