Finding the Fourth Proportional to 768,720.22, 1,060,841.86 and 424,564.79
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Solution
The fourth proportional to 768,720.22, 1,060,841.86 and 424,564.79 is: 585,903.80
Step by Step Solution
- Step 1: Write the proportion equation
768,720.22 : 1,060,841.86 = 424,564.79 : x - Step 2: Convert to fraction form
768,720.22/1,060,841.86 = 424,564.79/x - Step 3: Cross multiply
768,720.22x = 1,060,841.86 × 424,564.79 - Step 4: Simplify right side
768,720.22x = 450,396,095,148.49 - Step 5: Solve for x
x = 450,396,095,148.49/768,720.22 - Step 6: Final answer
x = 585,903.80
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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.