Finding the Third Proportional to 489,766 and 756,814
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Solution
The third proportional to 489,766 and 756,814 is: 1,169,471.61
Step by Step Solution
- Step 1: Write the proportion equation
489,766 : 756,814 = 756,814 : x - Step 2: Convert to fraction form
489,766/756,814 = 756,814/x - Step 3: Cross multiply
489,766x = 756,814 × 756,814 - Step 4: Simplify right side
489,766x = 572,767,430,596 - Step 5: Solve for x
x = 572,767,430,596/489,766 - Step 6: Final answer
x = 1,169,471.61
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These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.