Finding the Fourth Proportional to 749,609.79, 1,034,469.68 and 410,070.75
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Solution
The fourth proportional to 749,609.79, 1,034,469.68 and 410,070.75 is: 565,902.10
Step by Step Solution
- Step 1: Write the proportion equation
749,609.79 : 1,034,469.68 = 410,070.75 : x - Step 2: Convert to fraction form
749,609.79/1,034,469.68 = 410,070.75/x - Step 3: Cross multiply
749,609.79x = 1,034,469.68 × 410,070.75 - Step 4: Simplify right side
749,609.79x = 424,205,755,479.51 - Step 5: Solve for x
x = 424,205,755,479.51/749,609.79 - Step 6: Final answer
x = 565,902.10
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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.