Finding the Fourth Proportional to 1,211,511.83, 1,671,863.36 and 667,698.08
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Solution
The fourth proportional to 1,211,511.83, 1,671,863.36 and 667,698.08 is: 921,410.69
Step by Step Solution
- Step 1: Write the proportion equation
1,211,511.83 : 1,671,863.36 = 667,698.08 : x - Step 2: Convert to fraction form
1,211,511.83/1,671,863.36 = 667,698.08/x - Step 3: Cross multiply
1,211,511.83x = 1,671,863.36 × 667,698.08 - Step 4: Simplify right side
1,211,511.83x = 1,116,299,943,796.54 - Step 5: Solve for x
x = 1,116,299,943,796.54/1,211,511.83 - Step 6: Final answer
x = 921,410.69
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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.