Finding the Third Proportional to 778,785 and 1,689,762
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Solution
The third proportional to 778,785 and 1,689,762 is: 3,666,346.45
Step by Step Solution
- Step 1: Write the proportion equation
778,785 : 1,689,762 = 1,689,762 : x - Step 2: Convert to fraction form
778,785/1,689,762 = 1,689,762/x - Step 3: Cross multiply
778,785x = 1,689,762 × 1,689,762 - Step 4: Simplify right side
778,785x = 2,855,295,616,644 - Step 5: Solve for x
x = 2,855,295,616,644/778,785 - Step 6: Final answer
x = 3,666,346.45
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Why These Related Problems?
These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.