Finding the Fourth Proportional to 572,378.36, 789,918.96 and 330,671.12
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Solution
The fourth proportional to 572,378.36, 789,918.96 and 330,671.12 is: 456,347.42
Step by Step Solution
- Step 1: Write the proportion equation
572,378.36 : 789,918.96 = 330,671.12 : x - Step 2: Convert to fraction form
572,378.36/789,918.96 = 330,671.12/x - Step 3: Cross multiply
572,378.36x = 789,918.96 × 330,671.12 - Step 4: Simplify right side
572,378.36x = 261,203,387,212.44 - Step 5: Solve for x
x = 261,203,387,212.44/572,378.36 - Step 6: Final answer
x = 456,347.42
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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.