Finding the Third Proportional to 489,946.50 and 769,918.50
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Solution
The third proportional to 489,946.50 and 769,918.50 is: 1,209,875.97
Step by Step Solution
- Step 1: Write the proportion equation
489,946.50 : 769,918.50 = 769,918.50 : x - Step 2: Convert to fraction form
489,946.50/769,918.50 = 769,918.50/x - Step 3: Cross multiply
489,946.50x = 769,918.50 × 769,918.50 - Step 4: Simplify right side
489,946.50x = 592,774,496,642.25 - Step 5: Solve for x
x = 592,774,496,642.25/489,946.50 - Step 6: Final answer
x = 1,209,875.97
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.