Finding the Fourth Proportional to 752,733.96, 1,038,749.68 and 408,553.60
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Solution
The fourth proportional to 752,733.96, 1,038,749.68 and 408,553.60 is: 563,791.38
Step by Step Solution
- Step 1: Write the proportion equation
752,733.96 : 1,038,749.68 = 408,553.60 : x - Step 2: Convert to fraction form
752,733.96/1,038,749.68 = 408,553.60/x - Step 3: Cross multiply
752,733.96x = 1,038,749.68 × 408,553.60 - Step 4: Simplify right side
752,733.96x = 424,384,921,262.85 - Step 5: Solve for x
x = 424,384,921,262.85/752,733.96 - Step 6: Final answer
x = 563,791.38
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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.