Finding the Fourth Proportional to 1,211,193.41, 1,670,069.75 and 775,029.06
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Solution
The fourth proportional to 1,211,193.41, 1,670,069.75 and 775,029.06 is: 1,068,658.88
Step by Step Solution
- Step 1: Write the proportion equation
1,211,193.41 : 1,670,069.75 = 775,029.06 : x - Step 2: Convert to fraction form
1,211,193.41/1,670,069.75 = 775,029.06/x - Step 3: Cross multiply
1,211,193.41x = 1,670,069.75 × 775,029.06 - Step 4: Simplify right side
1,211,193.41x = 1,294,352,584,601.79 - Step 5: Solve for x
x = 1,294,352,584,601.79/1,211,193.41 - Step 6: Final answer
x = 1,068,658.88
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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.