Finding the Fourth Proportional to 789,603.07, 1,089,649.09 and 427,027.31
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Solution
The fourth proportional to 789,603.07, 1,089,649.09 and 427,027.31 is: 589,295.99
Step by Step Solution
- Step 1: Write the proportion equation
789,603.07 : 1,089,649.09 = 427,027.31 : x - Step 2: Convert to fraction form
789,603.07/1,089,649.09 = 427,027.31/x - Step 3: Cross multiply
789,603.07x = 1,089,649.09 × 427,027.31 - Step 4: Simplify right side
789,603.07x = 465,309,919,746.65 - Step 5: Solve for x
x = 465,309,919,746.65/789,603.07 - Step 6: Final answer
x = 589,295.99
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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.