Finding the Third Proportional to 561,511 and 1,221,405
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Solution
The third proportional to 561,511 and 1,221,405 is: 2,656,813.80
Step by Step Solution
- Step 1: Write the proportion equation
561,511 : 1,221,405 = 1,221,405 : x - Step 2: Convert to fraction form
561,511/1,221,405 = 1,221,405/x - Step 3: Cross multiply
561,511x = 1,221,405 × 1,221,405 - Step 4: Simplify right side
561,511x = 1,491,830,174,025 - Step 5: Solve for x
x = 1,491,830,174,025/561,511 - Step 6: Final answer
x = 2,656,813.80
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These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.