Finding the Fourth Proportional to 1,434,385.83, 1,979,495.99 and 789,829.09
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Solution
The fourth proportional to 1,434,385.83, 1,979,495.99 and 789,829.09 is: 1,089,988.12
Step by Step Solution
- Step 1: Write the proportion equation
1,434,385.83 : 1,979,495.99 = 789,829.09 : x - Step 2: Convert to fraction form
1,434,385.83/1,979,495.99 = 789,829.09/x - Step 3: Cross multiply
1,434,385.83x = 1,979,495.99 × 789,829.09 - Step 4: Simplify right side
1,434,385.83x = 1,563,463,511,985.25 - Step 5: Solve for x
x = 1,563,463,511,985.25/1,434,385.83 - Step 6: Final answer
x = 1,089,988.12
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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.