Finding the Fourth Proportional to 1,205,778.67, 1,663,931.49 and 682,478.08
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Solution
The fourth proportional to 1,205,778.67, 1,663,931.49 and 682,478.08 is: 941,795.37
Step by Step Solution
- Step 1: Write the proportion equation
1,205,778.67 : 1,663,931.49 = 682,478.08 : x - Step 2: Convert to fraction form
1,205,778.67/1,663,931.49 = 682,478.08/x - Step 3: Cross multiply
1,205,778.67x = 1,663,931.49 × 682,478.08 - Step 4: Simplify right side
1,205,778.67x = 1,135,596,768,546.74 - Step 5: Solve for x
x = 1,135,596,768,546.74/1,205,778.67 - Step 6: Final answer
x = 941,795.37
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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.