Finding the Fourth Proportional to 1,210,668.21, 1,670,575.86 and 694,395.36
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Solution
The fourth proportional to 1,210,668.21, 1,670,575.86 and 694,395.36 is: 958,181.70
Step by Step Solution
- Step 1: Write the proportion equation
1,210,668.21 : 1,670,575.86 = 694,395.36 : x - Step 2: Convert to fraction form
1,210,668.21/1,670,575.86 = 694,395.36/x - Step 3: Cross multiply
1,210,668.21x = 1,670,575.86 × 694,395.36 - Step 4: Simplify right side
1,210,668.21x = 1,160,040,125,712.01 - Step 5: Solve for x
x = 1,160,040,125,712.01/1,210,668.21 - Step 6: Final answer
x = 958,181.70
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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.