Finding the Third Proportional to 687,248.50 and 1,421,639
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Solution
The third proportional to 687,248.50 and 1,421,639 is: 2,940,795.72
Step by Step Solution
- Step 1: Write the proportion equation
687,248.50 : 1,421,639 = 1,421,639 : x - Step 2: Convert to fraction form
687,248.50/1,421,639 = 1,421,639/x - Step 3: Cross multiply
687,248.50x = 1,421,639 × 1,421,639 - Step 4: Simplify right side
687,248.50x = 2,021,057,446,321 - Step 5: Solve for x
x = 2,021,057,446,321/687,248.50 - Step 6: Final answer
x = 2,940,795.72
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Why These Related Problems?
These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.