Finding the Fourth Proportional to 1,211,116.77, 1,671,333.33 and 667,239.99
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Solution
The fourth proportional to 1,211,116.77, 1,671,333.33 and 667,239.99 is: 920,786.88
Step by Step Solution
- Step 1: Write the proportion equation
1,211,116.77 : 1,671,333.33 = 667,239.99 : x - Step 2: Convert to fraction form
1,211,116.77/1,671,333.33 = 667,239.99/x - Step 3: Cross multiply
1,211,116.77x = 1,671,333.33 × 667,239.99 - Step 4: Simplify right side
1,211,116.77x = 1,115,180,434,395.87 - Step 5: Solve for x
x = 1,115,180,434,395.87/1,211,116.77 - Step 6: Final answer
x = 920,786.88
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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.