Finding the Fourth Proportional to 789,363.36, 1,089,405.86 and 483,642.63
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Solution
The fourth proportional to 789,363.36, 1,089,405.86 and 483,642.63 is: 667,478.56
Step by Step Solution
- Step 1: Write the proportion equation
789,363.36 : 1,089,405.86 = 483,642.63 : x - Step 2: Convert to fraction form
789,363.36/1,089,405.86 = 483,642.63/x - Step 3: Cross multiply
789,363.36x = 1,089,405.86 × 483,642.63 - Step 4: Simplify right side
789,363.36x = 526,883,115,267.81 - Step 5: Solve for x
x = 526,883,115,267.81/789,363.36 - Step 6: Final answer
x = 667,478.56
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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.