Finding the Fourth Proportional to 789,347.68, 1,089,277.68 and 431,644
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Solution
The fourth proportional to 789,347.68, 1,089,277.68 and 431,644 is: 595,656.62
Step by Step Solution
- Step 1: Write the proportion equation
789,347.68 : 1,089,277.68 = 431,644 : x - Step 2: Convert to fraction form
789,347.68/1,089,277.68 = 431,644/x - Step 3: Cross multiply
789,347.68x = 1,089,277.68 × 431,644 - Step 4: Simplify right side
789,347.68x = 470,180,174,905.92 - Step 5: Solve for x
x = 470,180,174,905.92/789,347.68 - Step 6: Final answer
x = 595,656.62
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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.