Finding the Fourth Proportional to 913,918.72, 1,370,942.16 and 282,749.44
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Solution
The fourth proportional to 913,918.72, 1,370,942.16 and 282,749.44 is: 424,143.99
Step by Step Solution
- Step 1: Write the proportion equation
913,918.72 : 1,370,942.16 = 282,749.44 : x - Step 2: Convert to fraction form
913,918.72/1,370,942.16 = 282,749.44/x - Step 3: Cross multiply
913,918.72x = 1,370,942.16 × 282,749.44 - Step 4: Simplify right side
913,918.72x = 387,633,128,012.39 - Step 5: Solve for x
x = 387,633,128,012.39/913,918.72 - Step 6: Final answer
x = 424,143.99
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1.5x scale
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.