Finding the Fourth Proportional to 789,486.38, 1,089,424.98 and 467,139.99
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Solution
The fourth proportional to 789,486.38, 1,089,424.98 and 467,139.99 is: 644,614.00
Step by Step Solution
- Step 1: Write the proportion equation
789,486.38 : 1,089,424.98 = 467,139.99 : x - Step 2: Convert to fraction form
789,486.38/1,089,424.98 = 467,139.99/x - Step 3: Cross multiply
789,486.38x = 1,089,424.98 × 467,139.99 - Step 4: Simplify right side
789,486.38x = 508,913,974,262.95 - Step 5: Solve for x
x = 508,913,974,262.95/789,486.38 - Step 6: Final answer
x = 644,614.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.