Finding the Third Proportional to 309,699.70 and 489,477.94
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Solution
The third proportional to 309,699.70 and 489,477.94 is: 773,616.02
Step by Step Solution
- Step 1: Write the proportion equation
309,699.70 : 489,477.94 = 489,477.94 : x - Step 2: Convert to fraction form
309,699.70/489,477.94 = 489,477.94/x - Step 3: Cross multiply
309,699.70x = 489,477.94 × 489,477.94 - Step 4: Simplify right side
309,699.70x = 239,588,651,299.25 - Step 5: Solve for x
x = 239,588,651,299.25/309,699.70 - Step 6: Final answer
x = 773,616.02
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These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.